From: Roland Häder <roland@mxchange.org>
Date: Mon, 29 Jul 2013 23:26:07 +0000 (+0000)
Subject: Rewrote some parts:
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=e5527fd38a6585c8466dc28d013f12d21eb7c07a;p=mailer.git

Rewrote some parts:
- more double quotes converted to single (speed up)
- introduced isThemeReadable()
- Other minor rewrites
---

diff --git a/.gitattributes b/.gitattributes
index 813cd72c83..af7a7ce1b4 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1429,6 +1429,7 @@ templates/de/html/admin/admin_edit_surfbar_urls.tpl svneol=native#text/plain
 templates/de/html/admin/admin_edit_surfbar_urls_row.tpl svneol=native#text/plain
 templates/de/html/admin/admin_edit_theme.tpl svneol=native#text/plain
 templates/de/html/admin/admin_edit_theme_row.tpl svneol=native#text/plain
+templates/de/html/admin/admin_edit_theme_row_404.tpl svneol=native#text/plain
 templates/de/html/admin/admin_edit_user.tpl svneol=native#text/plain
 templates/de/html/admin/admin_edit_user_subids.tpl svneol=native#text/plain
 templates/de/html/admin/admin_edit_user_subids_row.tpl svneol=native#text/plain
diff --git a/inc/config-functions.php b/inc/config-functions.php
index 03ad13e7ac..29c0a7a2e1 100644
--- a/inc/config-functions.php
+++ b/inc/config-functions.php
@@ -305,7 +305,7 @@ function updateConfiguration ($entries, $values, $updateMode = '', $config = '0'
 			// Update mode set?
 			if (!empty($updateMode)) {
 				// Update entry
-				$SQL .= sprintf("`%s`=`%s`%s%01.5f,", $entry, $entry, $updateMode, (float) $values[$idx]);
+				$SQL .= sprintf('`%s`=`%s`%s%01.5f,', $entry, $entry, $updateMode, (float) $values[$idx]);
 			} else {
 				// Check if string or number but no array
 				if (is_array($values[$idx])) {
diff --git a/inc/expression-functions.php b/inc/expression-functions.php
index de71466a02..e25a28fd3f 100644
--- a/inc/expression-functions.php
+++ b/inc/expression-functions.php
@@ -157,7 +157,7 @@ function doExpressionExt ($data) {
 	} // END - if
 
 	// Generate replacer
-	$replacer = sprintf("&amp;ext=%s&amp;ver=%s&amp;rev={?CURRENT_REPOSITORY_REVISION?}", $data['matches'][4][$data['key']], $replacer);
+	$replacer = sprintf('&amp;ext=%s&amp;ver=%s&amp;rev={?CURRENT_REPOSITORY_REVISION?}', $data['matches'][4][$data['key']], $replacer);
 
 	// Replace it and insert parameter for GET request
 	$code = replaceExpressionCode($data, $replacer);
diff --git a/inc/extensions-functions.php b/inc/extensions-functions.php
index d842ddc163..88676dd81c 100644
--- a/inc/extensions-functions.php
+++ b/inc/extensions-functions.php
@@ -1100,7 +1100,7 @@ function createNewExtensionTask ($ext_name) {
 // Creates a task for automatically deactivated (deprecated) extension
 function createExtensionDeactivationTask ($ext_name) {
 	// Create subject line
-	$subject = sprintf("[%s:] %s", $ext_name, '{--ADMIN_TASK_EXTENSION_DEACTIVATED_SUBJECT--}');
+	$subject = sprintf('[%s:] %s', $ext_name, '{--ADMIN_TASK_EXTENSION_DEACTIVATED_SUBJECT--}');
 
 	// Get task id
 	$taskId = determineTaskIdBySubject($subject);
@@ -1618,7 +1618,7 @@ function getExtensionSqls () {
 	// Output debug backtrace if not found (SHOULD NOT HAPPEN!)
 	if (!isset($GLOBALS['ext_sqls'][getCurrentExtensionName()])) {
 		// Not found, should not happen
-		reportBug(__FUNCTION__, __LINE__, sprintf("ext_sqls is empty, current extension: %s",
+		reportBug(__FUNCTION__, __LINE__, sprintf('ext_sqls is empty, current extension: %s',
 			getCurrentExtensionName()
 		));
 	} // END - if
@@ -1632,7 +1632,7 @@ function countExtensionSqls () {
 	// Output debug backtrace if not found (SHOULD NOT HAPPEN!)
 	if (!isset($GLOBALS['ext_sqls'][getCurrentExtensionName()])) {
 		// Not found, should not happen
-		reportBug(__FUNCTION__, __LINE__, sprintf("ext_sqls is empty, current extension: %s",
+		reportBug(__FUNCTION__, __LINE__, sprintf('ext_sqls is empty, current extension: %s',
 			getCurrentExtensionName()
 		));
 	} // END - if
@@ -1961,7 +1961,7 @@ function addAdminMenuSql ($action, $what, $title, $descr, $sort) {
 		addExtensionSql($sql);
 	} elseif (isDebugModeEnabled()) {
 		// Double menus should be located and fixed!
-		logDebugMessage(__FUNCTION__, __LINE__, sprintf("Double admin menu action=%s,what=%s,title=%s detected.", $action, $what, $title));
+		logDebugMessage(__FUNCTION__, __LINE__, sprintf('Double admin menu action=%s,what=%s,title=%s detected.', $action, $what, $title));
 	}
 }
 
@@ -1991,7 +1991,7 @@ function addGuestMenuSql ($action, $what, $title, $sort) {
 		addExtensionSql($sql);
 	} elseif (isDebugModeEnabled()) {
 		// Double menus should be located and fixed!
-		logDebugMessage(__FUNCTION__, __LINE__, sprintf("Double guest menu action=%s,what=%s,title=%s detected.", $action, $what, $title));
+		logDebugMessage(__FUNCTION__, __LINE__, sprintf('Double guest menu action=%s,what=%s,title=%s detected.', $action, $what, $title));
 	}
 }
 
@@ -2021,7 +2021,7 @@ function addMemberMenuSql ($action, $what, $title, $sort) {
 		addExtensionSql($sql);
 	} elseif (isDebugModeEnabled()) {
 		// Double menus should be located and fixed!
-		logDebugMessage(__FUNCTION__, __LINE__, sprintf("Double member menu action=%s,what=%s,title=%s detected.", $action, $what, $title));
+		logDebugMessage(__FUNCTION__, __LINE__, sprintf('Double member menu action=%s,what=%s,title=%s detected.', $action, $what, $title));
 	}
 }
 
diff --git a/inc/extensions/ext-active.php b/inc/extensions/ext-active.php
index 1e258f0aa8..1fbcb79605 100644
--- a/inc/extensions/ext-active.php
+++ b/inc/extensions/ext-active.php
@@ -139,7 +139,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-admins.php b/inc/extensions/ext-admins.php
index f206c8d986..943f472bc6 100644
--- a/inc/extensions/ext-admins.php
+++ b/inc/extensions/ext-admins.php
@@ -94,7 +94,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-admintheme1.php b/inc/extensions/ext-admintheme1.php
index a2b1e1b615..42cc2a5095 100644
--- a/inc/extensions/ext-admintheme1.php
+++ b/inc/extensions/ext-admintheme1.php
@@ -89,7 +89,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-admintheme_default.php b/inc/extensions/ext-admintheme_default.php
index 524510463e..c263ce446c 100644
--- a/inc/extensions/ext-admintheme_default.php
+++ b/inc/extensions/ext-admintheme_default.php
@@ -89,7 +89,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-alert.php b/inc/extensions/ext-alert.php
index 7925281a33..3388c6ae3d 100644
--- a/inc/extensions/ext-alert.php
+++ b/inc/extensions/ext-alert.php
@@ -92,7 +92,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-announcement.php b/inc/extensions/ext-announcement.php
index c811a722ad..4b20a85c11 100644
--- a/inc/extensions/ext-announcement.php
+++ b/inc/extensions/ext-announcement.php
@@ -88,7 +88,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-autopurge.php b/inc/extensions/ext-autopurge.php
index ea52ca403f..223985f942 100644
--- a/inc/extensions/ext-autopurge.php
+++ b/inc/extensions/ext-autopurge.php
@@ -93,7 +93,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-autoreg.php b/inc/extensions/ext-autoreg.php
index 1a0c8ea60b..7f0102a464 100644
--- a/inc/extensions/ext-autoreg.php
+++ b/inc/extensions/ext-autoreg.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-bank.php b/inc/extensions/ext-bank.php
index 123ae857fa..c92bddc9a1 100644
--- a/inc/extensions/ext-bank.php
+++ b/inc/extensions/ext-bank.php
@@ -198,7 +198,7 @@ UNIQUE INDEX (`account_id`, `tan`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-beg.php b/inc/extensions/ext-beg.php
index 4fd43f9172..daf32c404c 100644
--- a/inc/extensions/ext-beg.php
+++ b/inc/extensions/ext-beg.php
@@ -119,7 +119,7 @@ INDEX (`userid`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-birthday.php b/inc/extensions/ext-birthday.php
index 4cd81c3d51..1c79deaf68 100644
--- a/inc/extensions/ext-birthday.php
+++ b/inc/extensions/ext-birthday.php
@@ -218,7 +218,7 @@ INDEX (`userid`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-bitcoins.php b/inc/extensions/ext-bitcoins.php
index be6584cba0..766a16fc0e 100644
--- a/inc/extensions/ext-bitcoins.php
+++ b/inc/extensions/ext-bitcoins.php
@@ -93,7 +93,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-blacklist.php b/inc/extensions/ext-blacklist.php
index 911ee626a0..0f7fbf6cb9 100644
--- a/inc/extensions/ext-blacklist.php
+++ b/inc/extensions/ext-blacklist.php
@@ -131,7 +131,7 @@ INDEX (`pool_id`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-bonus.php b/inc/extensions/ext-bonus.php
index 5c2d2a2d20..316cf35568 100644
--- a/inc/extensions/ext-bonus.php
+++ b/inc/extensions/ext-bonus.php
@@ -128,7 +128,7 @@ INDEX (`cat_id`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-booking.php b/inc/extensions/ext-booking.php
index 34f73f99fe..4abbcde976 100644
--- a/inc/extensions/ext-booking.php
+++ b/inc/extensions/ext-booking.php
@@ -122,7 +122,7 @@ INDEX (`userid`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-cache.php b/inc/extensions/ext-cache.php
index 533cdcb52f..f024ebdb05 100644
--- a/inc/extensions/ext-cache.php
+++ b/inc/extensions/ext-cache.php
@@ -253,7 +253,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-clickbanner.php b/inc/extensions/ext-clickbanner.php
index 776ee53f32..ad3babecc4 100644
--- a/inc/extensions/ext-clickbanner.php
+++ b/inc/extensions/ext-clickbanner.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-country.php b/inc/extensions/ext-country.php
index b97533bf9b..aa357dc1e0 100644
--- a/inc/extensions/ext-country.php
+++ b/inc/extensions/ext-country.php
@@ -140,7 +140,7 @@ UNIQUE INDEX (`code`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-coupon.php b/inc/extensions/ext-coupon.php
index 9f20be5279..970adb0fdf 100644
--- a/inc/extensions/ext-coupon.php
+++ b/inc/extensions/ext-coupon.php
@@ -174,7 +174,7 @@ UNIQUE INDEX (`coupon_code`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-cprping.php b/inc/extensions/ext-cprping.php
index e3f03c7c0b..e72744838c 100644
--- a/inc/extensions/ext-cprping.php
+++ b/inc/extensions/ext-cprping.php
@@ -92,7 +92,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-cron.php b/inc/extensions/ext-cron.php
index 080c19a787..fc3378638c 100644
--- a/inc/extensions/ext-cron.php
+++ b/inc/extensions/ext-cron.php
@@ -92,7 +92,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-currency.php b/inc/extensions/ext-currency.php
index d9fed226be..07530fb47b 100644
--- a/inc/extensions/ext-currency.php
+++ b/inc/extensions/ext-currency.php
@@ -92,7 +92,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-debug.php b/inc/extensions/ext-debug.php
index 243d80d765..9a3296b7ef 100644
--- a/inc/extensions/ext-debug.php
+++ b/inc/extensions/ext-debug.php
@@ -179,7 +179,7 @@ INDEX `client_log` (`client_id`, `log_id`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-demo.php b/inc/extensions/ext-demo.php
index a95e630b04..d29f42b401 100644
--- a/inc/extensions/ext-demo.php
+++ b/inc/extensions/ext-demo.php
@@ -89,7 +89,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-doubler.php b/inc/extensions/ext-doubler.php
index eac8bdedb8..7fb46edd03 100644
--- a/inc/extensions/ext-doubler.php
+++ b/inc/extensions/ext-doubler.php
@@ -96,7 +96,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-earning.php b/inc/extensions/ext-earning.php
index 00563b5567..babfad80ca 100644
--- a/inc/extensions/ext-earning.php
+++ b/inc/extensions/ext-earning.php
@@ -133,7 +133,7 @@ INDEX (`earning_userid`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-events.php b/inc/extensions/ext-events.php
index 3d54074e83..be65f71a7c 100644
--- a/inc/extensions/ext-events.php
+++ b/inc/extensions/ext-events.php
@@ -88,7 +88,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-forced.php b/inc/extensions/ext-forced.php
index 7ded2845a1..4ddcf364a3 100644
--- a/inc/extensions/ext-forced.php
+++ b/inc/extensions/ext-forced.php
@@ -109,7 +109,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-geoip.php b/inc/extensions/ext-geoip.php
index 580a319390..b5822d15dd 100644
--- a/inc/extensions/ext-geoip.php
+++ b/inc/extensions/ext-geoip.php
@@ -92,7 +92,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-grade.php b/inc/extensions/ext-grade.php
index addae42a9c..d929f09d3f 100644
--- a/inc/extensions/ext-grade.php
+++ b/inc/extensions/ext-grade.php
@@ -99,7 +99,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-holiday.php b/inc/extensions/ext-holiday.php
index 40c517ca7f..57cf3e7803 100644
--- a/inc/extensions/ext-holiday.php
+++ b/inc/extensions/ext-holiday.php
@@ -113,7 +113,7 @@ INDEX (`userid`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-html_mail.php b/inc/extensions/ext-html_mail.php
index a044096960..88481d2968 100644
--- a/inc/extensions/ext-html_mail.php
+++ b/inc/extensions/ext-html_mail.php
@@ -123,7 +123,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-imprint.php b/inc/extensions/ext-imprint.php
index 1e09e0e0f2..763cb8cb2f 100644
--- a/inc/extensions/ext-imprint.php
+++ b/inc/extensions/ext-imprint.php
@@ -121,7 +121,7 @@ UNIQUE INDEX (`imprint_key`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-jackpot.php b/inc/extensions/ext-jackpot.php
index 879c0642ae..0249b1d42b 100644
--- a/inc/extensions/ext-jackpot.php
+++ b/inc/extensions/ext-jackpot.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-lead.php b/inc/extensions/ext-lead.php
index 6f00aac894..64e9870509 100644
--- a/inc/extensions/ext-lead.php
+++ b/inc/extensions/ext-lead.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-logs.php b/inc/extensions/ext-logs.php
index 57add34a7b..f291d96f8e 100644
--- a/inc/extensions/ext-logs.php
+++ b/inc/extensions/ext-logs.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 }
 
diff --git a/inc/extensions/ext-mailid.php b/inc/extensions/ext-mailid.php
index 9c0207ae01..af69550a8a 100644
--- a/inc/extensions/ext-mailid.php
+++ b/inc/extensions/ext-mailid.php
@@ -249,7 +249,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-maintenance.php b/inc/extensions/ext-maintenance.php
index a356bec8c5..fcecac8750 100644
--- a/inc/extensions/ext-maintenance.php
+++ b/inc/extensions/ext-maintenance.php
@@ -116,7 +116,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-mediadata.php b/inc/extensions/ext-mediadata.php
index 1a2b99b5b3..a34d8a7605 100644
--- a/inc/extensions/ext-mediadata.php
+++ b/inc/extensions/ext-mediadata.php
@@ -157,7 +157,7 @@ Bitte stellen Sie diesen derzeit manuell unter <a href=\"%url=modules.php?module
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-menu.php b/inc/extensions/ext-menu.php
index 87fafd53a0..348a4f2e1c 100644
--- a/inc/extensions/ext-menu.php
+++ b/inc/extensions/ext-menu.php
@@ -137,7 +137,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-mods.php b/inc/extensions/ext-mods.php
index a86b27b8f2..44e9e644ae 100644
--- a/inc/extensions/ext-mods.php
+++ b/inc/extensions/ext-mods.php
@@ -144,7 +144,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-mydata.php b/inc/extensions/ext-mydata.php
index b0da3620a7..7b349b14b4 100644
--- a/inc/extensions/ext-mydata.php
+++ b/inc/extensions/ext-mydata.php
@@ -178,7 +178,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-network.php b/inc/extensions/ext-network.php
index e46d66bd88..8a1a5b5976 100644
--- a/inc/extensions/ext-network.php
+++ b/inc/extensions/ext-network.php
@@ -109,7 +109,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-newsletter.php b/inc/extensions/ext-newsletter.php
index 85609399df..1ff4ca2acd 100644
--- a/inc/extensions/ext-newsletter.php
+++ b/inc/extensions/ext-newsletter.php
@@ -233,7 +233,7 @@ INDEX `topic` (`nl_topic_id`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-nickname.php b/inc/extensions/ext-nickname.php
index b03675d033..d922667754 100644
--- a/inc/extensions/ext-nickname.php
+++ b/inc/extensions/ext-nickname.php
@@ -201,7 +201,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-online.php b/inc/extensions/ext-online.php
index 99a76450b1..8812336df7 100644
--- a/inc/extensions/ext-online.php
+++ b/inc/extensions/ext-online.php
@@ -145,7 +145,7 @@ INDEX `admin_member` (`is_admin`, `is_member`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-optimize.php b/inc/extensions/ext-optimize.php
index 6d9d2985bd..a61c7c0a10 100644
--- a/inc/extensions/ext-optimize.php
+++ b/inc/extensions/ext-optimize.php
@@ -121,7 +121,7 @@ PRIMARY KEY (`id`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-order.php b/inc/extensions/ext-order.php
index 9d43bfacdd..dd9807424b 100644
--- a/inc/extensions/ext-order.php
+++ b/inc/extensions/ext-order.php
@@ -99,7 +99,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-other.php b/inc/extensions/ext-other.php
index 50a2b7aeca..7b36bdf243 100644
--- a/inc/extensions/ext-other.php
+++ b/inc/extensions/ext-other.php
@@ -86,7 +86,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-partner.php b/inc/extensions/ext-partner.php
index bbcf5a2021..3da1fb8190 100644
--- a/inc/extensions/ext-partner.php
+++ b/inc/extensions/ext-partner.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-payout.php b/inc/extensions/ext-payout.php
index 79b6600cf0..dd190d5bb3 100644
--- a/inc/extensions/ext-payout.php
+++ b/inc/extensions/ext-payout.php
@@ -112,7 +112,7 @@ PRIMARY KEY (`id`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-politician-stop.php b/inc/extensions/ext-politician-stop.php
index 1f0499dd74..e5689be49e 100644
--- a/inc/extensions/ext-politician-stop.php
+++ b/inc/extensions/ext-politician-stop.php
@@ -88,7 +88,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-profile.php b/inc/extensions/ext-profile.php
index 325ebcc14a..3f29ace16a 100644
--- a/inc/extensions/ext-profile.php
+++ b/inc/extensions/ext-profile.php
@@ -141,7 +141,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-rallye.php b/inc/extensions/ext-rallye.php
index 54c4d84c4d..e90df172f3 100644
--- a/inc/extensions/ext-rallye.php
+++ b/inc/extensions/ext-rallye.php
@@ -146,7 +146,7 @@ INDEX (`userid`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-ranking.php b/inc/extensions/ext-ranking.php
index 5521cd3292..bd47dd8e7e 100644
--- a/inc/extensions/ext-ranking.php
+++ b/inc/extensions/ext-ranking.php
@@ -94,7 +94,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-refback.php b/inc/extensions/ext-refback.php
index c4b2bc4111..8a5cc56165 100644
--- a/inc/extensions/ext-refback.php
+++ b/inc/extensions/ext-refback.php
@@ -127,7 +127,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-refsell.php b/inc/extensions/ext-refsell.php
index 11f9131359..6778bb3685 100644
--- a/inc/extensions/ext-refsell.php
+++ b/inc/extensions/ext-refsell.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-register.php b/inc/extensions/ext-register.php
index 79b4558e95..1e158c4a98 100644
--- a/inc/extensions/ext-register.php
+++ b/inc/extensions/ext-register.php
@@ -90,7 +90,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-removeip.php b/inc/extensions/ext-removeip.php
index 3a7fb4b073..b4cafe4dbd 100644
--- a/inc/extensions/ext-removeip.php
+++ b/inc/extensions/ext-removeip.php
@@ -99,7 +99,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-repair.php b/inc/extensions/ext-repair.php
index f6db930885..33c225cfd3 100644
--- a/inc/extensions/ext-repair.php
+++ b/inc/extensions/ext-repair.php
@@ -139,7 +139,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-report.php b/inc/extensions/ext-report.php
index f828bde843..1ee4d9e804 100644
--- a/inc/extensions/ext-report.php
+++ b/inc/extensions/ext-report.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-rewrite.php b/inc/extensions/ext-rewrite.php
index 2f533fdd0a..f8911ae166 100644
--- a/inc/extensions/ext-rewrite.php
+++ b/inc/extensions/ext-rewrite.php
@@ -174,7 +174,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 }
 
diff --git a/inc/extensions/ext-safe.php b/inc/extensions/ext-safe.php
index 202ddb98be..8297559978 100644
--- a/inc/extensions/ext-safe.php
+++ b/inc/extensions/ext-safe.php
@@ -88,7 +88,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-seo.php b/inc/extensions/ext-seo.php
index baa01b8f85..070de6fbda 100644
--- a/inc/extensions/ext-seo.php
+++ b/inc/extensions/ext-seo.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-shredder.php b/inc/extensions/ext-shredder.php
index 200f36e841..95ca2ca77d 100644
--- a/inc/extensions/ext-shredder.php
+++ b/inc/extensions/ext-shredder.php
@@ -93,7 +93,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-signup.php b/inc/extensions/ext-signup.php
index c5ef0e6c87..65718547d7 100644
--- a/inc/extensions/ext-signup.php
+++ b/inc/extensions/ext-signup.php
@@ -168,7 +168,7 @@ PRIMARY KEY (`id`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-sponsor.php b/inc/extensions/ext-sponsor.php
index 11b9350640..f6a902d5af 100644
--- a/inc/extensions/ext-sponsor.php
+++ b/inc/extensions/ext-sponsor.php
@@ -113,7 +113,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-sql_patches.php b/inc/extensions/ext-sql_patches.php
index 1dadbcd4a8..3bb8f2d1da 100644
--- a/inc/extensions/ext-sql_patches.php
+++ b/inc/extensions/ext-sql_patches.php
@@ -83,7 +83,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-support.php b/inc/extensions/ext-support.php
index a9ab5ef6b6..3b2844bc49 100644
--- a/inc/extensions/ext-support.php
+++ b/inc/extensions/ext-support.php
@@ -144,7 +144,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-surfbar.php b/inc/extensions/ext-surfbar.php
index 87fff72dee..df59c379a1 100644
--- a/inc/extensions/ext-surfbar.php
+++ b/inc/extensions/ext-surfbar.php
@@ -108,7 +108,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-task.php b/inc/extensions/ext-task.php
index 5aad99b64f..5411b70f9b 100644
--- a/inc/extensions/ext-task.php
+++ b/inc/extensions/ext-task.php
@@ -92,7 +92,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-teams.php b/inc/extensions/ext-teams.php
index 40ff10f7dc..5b603a6fea 100644
--- a/inc/extensions/ext-teams.php
+++ b/inc/extensions/ext-teams.php
@@ -93,7 +93,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-terms.php b/inc/extensions/ext-terms.php
index 9c08b48e53..e0369293cb 100644
--- a/inc/extensions/ext-terms.php
+++ b/inc/extensions/ext-terms.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-theme.php b/inc/extensions/ext-theme.php
index 39d54a85cc..6fdd54a43c 100644
--- a/inc/extensions/ext-theme.php
+++ b/inc/extensions/ext-theme.php
@@ -208,7 +208,7 @@ INDEX (`theme_active`)", 'Themes');
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-timezone.php b/inc/extensions/ext-timezone.php
index 0401251cd9..1d4944141e 100644
--- a/inc/extensions/ext-timezone.php
+++ b/inc/extensions/ext-timezone.php
@@ -97,7 +97,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-top10.php b/inc/extensions/ext-top10.php
index 4ec6e30adf..0ff4ac4b44 100644
--- a/inc/extensions/ext-top10.php
+++ b/inc/extensions/ext-top10.php
@@ -147,7 +147,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-transaction.php b/inc/extensions/ext-transaction.php
index c420a20190..12fc28baea 100644
--- a/inc/extensions/ext-transaction.php
+++ b/inc/extensions/ext-transaction.php
@@ -93,7 +93,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-transfer.php b/inc/extensions/ext-transfer.php
index 2dc04f171a..5f122a2330 100644
--- a/inc/extensions/ext-transfer.php
+++ b/inc/extensions/ext-transfer.php
@@ -89,7 +89,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-uberwach.php b/inc/extensions/ext-uberwach.php
index 0b4b73ee1e..67df3ddef9 100644
--- a/inc/extensions/ext-uberwach.php
+++ b/inc/extensions/ext-uberwach.php
@@ -93,7 +93,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-update.php b/inc/extensions/ext-update.php
index 050ad395e0..eed201dc09 100644
--- a/inc/extensions/ext-update.php
+++ b/inc/extensions/ext-update.php
@@ -88,7 +88,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-usage.php b/inc/extensions/ext-usage.php
index 994230a1f8..6c637068b4 100644
--- a/inc/extensions/ext-usage.php
+++ b/inc/extensions/ext-usage.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-user.php b/inc/extensions/ext-user.php
index c520aface1..4376ddda90 100644
--- a/inc/extensions/ext-user.php
+++ b/inc/extensions/ext-user.php
@@ -88,7 +88,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-validator.php b/inc/extensions/ext-validator.php
index 54f00c95b0..c4d56a9f2a 100644
--- a/inc/extensions/ext-validator.php
+++ b/inc/extensions/ext-validator.php
@@ -87,7 +87,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-wernis.php b/inc/extensions/ext-wernis.php
index 19a01bceeb..79256cda88 100644
--- a/inc/extensions/ext-wernis.php
+++ b/inc/extensions/ext-wernis.php
@@ -159,6 +159,11 @@ INDEX (`userid`)",
 				// Update notes
 				setExtensionUpdateNotes("Es wird seit API-Version 0.6-BETA SHA256 (hexadezimal kodiert) verwendet.");
 				break;
+
+			case '0.0.7': // SQL queries for v0.0.7
+				// Update notes
+				setExtensionUpdateNotes("");
+				break;
 		} // END - switch
 		break;
 
@@ -174,7 +179,7 @@ INDEX (`userid`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-yacy.php b/inc/extensions/ext-yacy.php
index 3ee65939a8..649a217c29 100644
--- a/inc/extensions/ext-yacy.php
+++ b/inc/extensions/ext-yacy.php
@@ -93,7 +93,7 @@ switch (getExtensionMode()) {
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/extensions/ext-yoomedia.php b/inc/extensions/ext-yoomedia.php
index c2fb185024..9d5fd0d52c 100644
--- a/inc/extensions/ext-yoomedia.php
+++ b/inc/extensions/ext-yoomedia.php
@@ -145,7 +145,7 @@ UNIQUE INDEX `y_type` (`type`, `y_id`)",
 		break;
 
 	default: // Unknown extension mode
-		reportBug(__FILE__, __LINE__, sprintf("Unknown extension mode %s in extension %s detected.", getExtensionMode(), getCurrentExtensionName()));
+		reportBug(__FILE__, __LINE__, sprintf('Unknown extension mode %s in extension %s detected.', getExtensionMode(), getCurrentExtensionName()));
 		break;
 } // END - switch
 
diff --git a/inc/filter/theme_filter.php b/inc/filter/theme_filter.php
index 3227a34291..e5fc19f7d9 100644
--- a/inc/filter/theme_filter.php
+++ b/inc/filter/theme_filter.php
@@ -45,7 +45,7 @@ function FILTER_HANDLE_THEME_CHANGE ($filterData) {
 	//* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Called!');
 
 	// Check if new theme is selcted
-	if ((isPostRequestElementSet('new_theme')) && (postRequestElement('new_theme') != getCurrentTheme())) {
+	if ((isPostRequestElementSet('new_theme')) && (postRequestElement('new_theme') != getCurrentTheme()) && (isThemeReadable(postRequestElement('new_theme')))) {
 		// Set new theme for guests
 		$newTheme = postRequestElement('new_theme');
 
diff --git a/inc/fix_menu.php b/inc/fix_menu.php
index 50be57d018..8c6288b7f4 100644
--- a/inc/fix_menu.php
+++ b/inc/fix_menu.php
@@ -59,7 +59,7 @@ foreach (array('guest','member','admin') as $menu) {
 			// Double entry, so get count
 			if (is_null($entry['what'])) {
 				// Main menu
-				$entries = countSumTotalData($entry['action'], $menu . '_menu', 'action', 'action', TRUE, " AND `what` IS NULL");
+				$entries = countSumTotalData($entry['action'], $menu . '_menu', 'action', 'action', TRUE, ' AND `what` IS NULL');
 			} else {
 				// Sub menu
 				$entries = countSumTotalData($entry['action'], $menu . '_menu', 'action', 'action', TRUE, sprintf(" AND `what`='%s'", $entry['what']));
diff --git a/inc/functions.php b/inc/functions.php
index 1054326b78..983af617ef 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -146,7 +146,7 @@ function generateDateTime ($time, $mode = '0') {
 				case '6': $ret = date('Ymd', $timeSecured); break;
 				case '7': $ret = date('Y-m-d H:i:s', $timeSecured); break; // Compatible with MySQL TIMESTAMP
 				default:
-					logDebugMessage(__FUNCTION__, __LINE__, sprintf("Invalid date mode %s detected.", $mode));
+					logDebugMessage(__FUNCTION__, __LINE__, sprintf('Invalid date mode %s detected.', $mode));
 					break;
 			} // END - switch
 			break;
@@ -162,7 +162,7 @@ function generateDateTime ($time, $mode = '0') {
 				case '6': $ret = date('Ymd', $timeSecured); break;
 				case '7': $ret = date('Y-m-d H:i:s', $timeSecured); break; // Compatible with MySQL TIMESTAMP
 				default:
-					logDebugMessage(__FUNCTION__, __LINE__, sprintf("Invalid date mode %s detected.", $mode));
+					logDebugMessage(__FUNCTION__, __LINE__, sprintf('Invalid date mode %s detected.', $mode));
 					break;
 			} // END - switch
 	} // END - switch
@@ -185,7 +185,7 @@ function translateYesNo ($yn) {
 			case 'N': $GLOBALS[__FUNCTION__][$yn] = '{--NO--}'; break;
 			default:
 				// Log unknown value
-				logDebugMessage(__FUNCTION__, __LINE__, sprintf("Unknown value %s. Expected: Y/N", $yn));
+				logDebugMessage(__FUNCTION__, __LINE__, sprintf('Unknown value %s. Expected: Y/N', $yn));
 				break;
 		} // END - switch
 	} // END - if
@@ -205,7 +205,7 @@ function translateActivationStatus ($status) {
 			case 'N': $GLOBALS[__FUNCTION__][$status] = '{--DEACTIVATED--}'; break;
 			default:
 				// Log unknown value
-				logDebugMessage(__FUNCTION__, __LINE__, sprintf("Unknown value %s. Expected: Y/N", $status));
+				logDebugMessage(__FUNCTION__, __LINE__, sprintf('Unknown value %s. Expected: Y/N', $status));
 				break;
 		} // END - switch
 	} // END - if
@@ -278,7 +278,7 @@ function translateGender ($gender) {
 
 		default:
 			// Please report bugs on unknown genders
-			reportBug(__FUNCTION__, __LINE__, sprintf("Unknown gender %s detected.", $gender));
+			reportBug(__FUNCTION__, __LINE__, sprintf('Unknown gender %s detected.', $gender));
 			break;
 	} // END - switch
 
@@ -296,7 +296,7 @@ function translateUserStatus ($status) {
 		case 'UNCONFIRMED':
 		case 'CONFIRMED':
 		case 'LOCKED':
-			// Use generic function for all "normal" cases"
+			// Use generic function for all "normal" cases
 			$ret = translateGeneric('ACCOUNT_STATUS', $status);
 			break;
 
@@ -306,7 +306,7 @@ function translateUserStatus ($status) {
 			break;
 
 		default: // Please report all unknown status
-			reportBug(__FUNCTION__, __LINE__, sprintf("Unknown status %s(%s) detected.", $status, gettype($status)));
+			reportBug(__FUNCTION__, __LINE__, sprintf('Unknown status %s(%s) detected.', $status, gettype($status)));
 			break;
 	} // END - switch
 
@@ -984,13 +984,13 @@ function getCurrentTheme () {
 	if (isExtensionActive('theme')) {
 		// Call inner method
 		$ret = getActualTheme();
-	} elseif ((isPostRequestElementSet('theme')) && (isIncludeReadable(sprintf("theme/%s/theme.php", postRequestElement('theme'))))) {
+	} elseif ((isPostRequestElementSet('theme')) && (isThemeReadable(postRequestElement('theme')))) {
 		// Use value from POST data
 		$ret = postRequestElement('theme');
-	} elseif ((isGetRequestElementSet('theme')) && (isIncludeReadable(sprintf("theme/%s/theme.php", getRequestElement('theme'))))) {
+	} elseif ((isGetRequestElementSet('theme')) && (isThemeReadable(getRequestElement('theme')))) {
 		// Use value from GET data
 		$ret = getRequestElement('theme');
-	} elseif ((isMailerThemeSet()) && (isIncludeReadable(sprintf("theme/%s/theme.php", getMailerTheme())))) {
+	} elseif ((isMailerThemeSet()) && (isThemeReadable(getMailerTheme()))) {
 		// Use value from GET data
 		$ret = getMailerTheme();
 	}
@@ -1011,7 +1011,7 @@ function generateErrorCodeFromUserStatus ($status = '') {
 	$errorCode = getCode('ACCOUNT_UNKNOWN');
 
 	// Generate constant name
-	$codeName = sprintf("ACCOUNT_%s", strtoupper($status));
+	$codeName = sprintf('ACCOUNT_%s', strtoupper($status));
 
 	// Is the constant there?
 	if (isCodeSet($codeName)) {
@@ -1019,7 +1019,7 @@ function generateErrorCodeFromUserStatus ($status = '') {
 		$errorCode = getCode($codeName);
 	} else {
 		// Unknown status
-		logDebugMessage(__FUNCTION__, __LINE__, sprintf("Unknown error status %s detected.", $status));
+		logDebugMessage(__FUNCTION__, __LINE__, sprintf('Unknown error status %s detected.', $status));
 	}
 
 	// Return error code
@@ -2895,5 +2895,17 @@ function getBasePathFromTheme ($theme) {
 	return sprintf('%stheme/%s/css/', getPath(), $theme);
 }
 
+// Wrapper to check whether given theme is readable
+function isThemeReadable ($theme) {
+	// Is there cache?
+	if (!isset($GLOBALS[__FUNCTION__][$theme])) {
+		// Determine it
+		$GLOBALS[__FUNCTION__][$theme] = (isIncludeReadable(sprintf('theme/%s/theme.php', $theme)));
+	} // END - if
+
+	// Return cache
+	return $GLOBALS[__FUNCTION__][$theme];
+}
+
 // [EOF]
 ?>
diff --git a/inc/handler.php b/inc/handler.php
index 542e66aa9d..7a4aa53c87 100644
--- a/inc/handler.php
+++ b/inc/handler.php
@@ -43,7 +43,7 @@ if (!defined('__SECURITY')) {
 // Error handler function
 function __errorHandler ($errno, $errstr, $errfile, $errline) {
 	// Construct message
-	$message = sprintf("errno=%s(0x%s),errstr=%s,errfile=%s,errline=%s",
+	$message = sprintf('errno=%s(0x%s),errstr=%s,errfile=%s,errline=%s',
 		$errno,
 		getHexErrorCode($errno),
 		$errstr,
diff --git a/inc/language/theme_de.php b/inc/language/theme_de.php
index 92c4498ed6..d9bd247ba9 100644
--- a/inc/language/theme_de.php
+++ b/inc/language/theme_de.php
@@ -52,6 +52,7 @@ addMessages(array(
 	'ADMIN_EDIT_THEME_TITLE' => "Designs &auml;ndern, Standarddesign setzen",
 	'ADMIN_EDIT_THEME_NOTICE' => "Durch Anklicken des Uni*-Names wird das jeweilige Theme als Standard-Theme gesetzt, welches Ihre Besucher sofort sehen werden.",
 	'ADMIN_IMPORT_THEMES_TITLE' => "Hochgeladene Designs importieren",
+	'ADMIN_THEME_NOT_READABLE' => "Theme-Datei nicht lesbar.",
 
 	// Admin - for ext-task
 	'ADMIN_TASK_LIST_THEME_ALL' => "Alle inst. Themes",
diff --git a/inc/libs/admins_functions.php b/inc/libs/admins_functions.php
index 72d64ec02a..1c43c5ec22 100644
--- a/inc/libs/admins_functions.php
+++ b/inc/libs/admins_functions.php
@@ -557,7 +557,7 @@ function sendAdminsEmails ($subject, $template, $content, $userid) {
 				EVENTS_ADD_LINE($subject, $message, $userid);
 			} else {
 				// Log error for debug
-				logDebugMessage(__FUNCTION__, __LINE__, sprintf("Extension 'ext-events' missing: template=%s,subj=%s,userid=%s",
+				logDebugMessage(__FUNCTION__, __LINE__, sprintf('Extension ext-events missing: template=%s,subj=%s,userid=%s',
 					$template,
 					$subject,
 					$userid
diff --git a/inc/libs/refback_functions.php b/inc/libs/refback_functions.php
index 6a882d10ac..4fb906fc38 100644
--- a/inc/libs/refback_functions.php
+++ b/inc/libs/refback_functions.php
@@ -103,7 +103,7 @@ LIMIT 1',
 
 				// Add points again, but only directly
 				//* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'refbackPoints=' . $refbackPoints . ',userid=' . $userid . ',ref=' . $ref . ',refid=' . convertNullToZero($refid) . ' - REFBACK-UPDATE! (' . sqlAffectedRows() . ')');
-				addPointsThroughReferralSystem(sprintf("refback:%s", $refid), $userid, $refbackPoints);
+				addPointsThroughReferralSystem(sprintf('refback:%s', $refid), $userid, $refbackPoints);
 
 				// Reduce points if refid is found
 				//* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'userid=' . $userid . ',refid=' . $refid . ',ref=' . $ref . ' - REDUCING?');
diff --git a/inc/libs/theme_functions.php b/inc/libs/theme_functions.php
index 8539bff033..74894b9956 100644
--- a/inc/libs/theme_functions.php
+++ b/inc/libs/theme_functions.php
@@ -77,13 +77,10 @@ ORDER BY
 
 	// Load all themes
 	while ($row = sqlFetchArray($result)) {
-		// Construct relative include file name
-		$inc = sprintf("theme/%s/theme.php", secureString($row['theme_path']));
-
 		// Load it's theme.php file if found
-		if (isIncludeReadable($inc)) {
+		if (isThemeReadable($row['theme_path'])) {
 			// And save all data in array
-			loadInclude($inc);
+			loadInclude(sprintf('theme/%s/theme.php', secureString($row['theme_path'])));
 			array_push($themesArray['theme_unix'], $row['theme_path']);
 			array_push($themesArray['theme_name'], $row['theme_name']);
 		} // END - if
@@ -250,13 +247,13 @@ function getActualTheme () {
 		} // END - if
 	} elseif ((!isInstalled()) && ((isInstalling()) || (isHtmlOutputMode())) && ((isGetRequestElementSet('theme')) || (isPostRequestElementSet('theme')))) {
 		// Prepare filename for checking
-		$themeFile = sprintf("theme/%s/theme.php", getRequestElement('theme'));
+		$themeFile = sprintf('theme/%s/theme.php', getRequestElement('theme'));
 
 		// Installation mode active
-		if ((isGetRequestElementSet('theme')) && (isIncludeReadable($theme))) {
+		if ((isGetRequestElementSet('theme')) && (isThemeReadable(getRequestElement('theme')))) {
 			// Set cookie from URL data
 			setMailerTheme(getRequestElement('theme'));
-		} elseif (isIncludeReadable(sprintf("theme/%s/theme.php", postRequestElement('theme')))) {
+		} elseif ((isPostRequestElementSet('theme')) && (isThemeReadable(postRequestElement('theme')))) {
 			// Set cookie from posted data
 			setMailerTheme(postRequestElement('theme'));
 		}
diff --git a/inc/modules/admin.php b/inc/modules/admin.php
index bab3484705..1807ee960f 100644
--- a/inc/modules/admin.php
+++ b/inc/modules/admin.php
@@ -136,7 +136,7 @@ if (!isAdminRegistered()) {
 				break;
 
 			default: // Others will be logged
-				logDebugMessage(__FILE__, __LINE__, sprintf("Unknown return code %s from ifAdminLoginDataIsValid()", $ret));
+				logDebugMessage(__FILE__, __LINE__, sprintf('Unknown return code %s from ifAdminLoginDataIsValid()', $ret));
 				break;
 		} // END - switch
 	} // END - if
@@ -199,7 +199,7 @@ if (!isAdminRegistered()) {
 			$register = getRequestElement('setup');
 
 			// Special logout redirect for installation of given extension
-			loadTemplate(sprintf("admin_logout_%s_install", $register));
+			loadTemplate(sprintf('admin_logout_%s_install', $register));
 		} elseif (isGetRequestElementSet('remove')) {
 			// Secure input
 			$remove = getRequestElement('remove');
diff --git a/inc/modules/admin/what-list_yoomedia_tm.php b/inc/modules/admin/what-list_yoomedia_tm.php
index e7b42518b7..37f07a08d6 100644
--- a/inc/modules/admin/what-list_yoomedia_tm.php
+++ b/inc/modules/admin/what-list_yoomedia_tm.php
@@ -85,7 +85,7 @@ if ((!isFilledArray($result)) || (!isset($result[0]['id']))) {
 	$code = YOOMEDIA_GET_ERRORCODE_FROM_RESULT($result);
 
 	// Output message
-	loadTemplate('admin_yoomedia_error', FALSE, sprintf("{--ADMIN_YOOMEDIA_ERROR_%s--}", strtoupper(translateYooMediaError($code))));
+	loadTemplate('admin_yoomedia_error', FALSE, sprintf('{--ADMIN_YOOMEDIA_ERROR_%s--}', strtoupper(translateYooMediaError($code))));
 	return FALSE;
 }
 
diff --git a/inc/modules/admin/what-theme_edit.php b/inc/modules/admin/what-theme_edit.php
index 80808500f4..9a515415aa 100644
--- a/inc/modules/admin/what-theme_edit.php
+++ b/inc/modules/admin/what-theme_edit.php
@@ -108,26 +108,29 @@ ORDER BY
 
 if (!ifSqlHasZeroNums($result)) {
 	while ($content = sqlFetchArray($result)) {
-		// Construct IFN
-		$inc = sprintf("theme/%s/theme.php", $content['theme_path']);
-
-		// Load theme in test mode
-		loadInclude($inc);
-
-		// Copy data from theme to content
-		$content['theme_url'] = $GLOBALS['theme_data']['url'];
-
-		// Is the loaded theme name != current theme name?
-		$content['link'] = $content['theme_path'];
-		if ($content['theme_path'] != getCurrentTheme()) {
-			$content['link'] = '<a href="{%url=modules.php?module=admin&amp;what=theme_edit&amp;default_theme=' . $content['theme_path'] . '%}" title="{--ADMIN_SET_AS_DEFAULT_THEME--}">' . $content['theme_path'] . '</a>';
-		} // END - if
-
-		// Prepare data for the row template
-		$content['email'] = '<a href="mailto:' . $GLOBALS['theme_data']['email'] . '?Subject=[Theme:] ' . $GLOBALS['theme_data']['name'] . ' (' . $content['theme_path'] . ')\>' . $GLOBALS['theme_data']['author'] . '</a>';
-
-		// Load row template and switch color
-		$OUT .= loadTemplate('admin_edit_theme_row', TRUE, $content);
+		// Is the theme readable?
+		if (isThemeReadable($content['theme_path'])) {
+			// Load theme in test mode
+			loadInclude(sprintf('theme/%s/theme.php', $content['theme_path']));
+
+			// Copy data from theme to content
+			$content['theme_url'] = $GLOBALS['theme_data']['url'];
+
+			// Is the loaded theme name != current theme name?
+			$content['link'] = $content['theme_path'];
+			if ($content['theme_path'] != getCurrentTheme()) {
+				$content['link'] = '<a href="{%url=modules.php?module=admin&amp;what=theme_edit&amp;default_theme=' . $content['theme_path'] . '%}" title="{--ADMIN_SET_AS_DEFAULT_THEME--}">' . $content['theme_path'] . '</a>';
+			} // END - if
+
+			// Prepare data for the row template
+			$content['email'] = '<a href="mailto:' . $GLOBALS['theme_data']['email'] . '?Subject=[Theme:] ' . $GLOBALS['theme_data']['name'] . ' (' . $content['theme_path'] . ')\>' . $GLOBALS['theme_data']['author'] . '</a>';
+
+			// Load row template and switch color
+			$OUT .= loadTemplate('admin_edit_theme_row', TRUE, $content);
+		} else {
+			// Not readable
+			$OUT .= loadTemplate('admin_edit_theme_row_404', TRUE, $content);
+		}
 	} // END - while
 
 	// Free memory
diff --git a/inc/modules/guest/what-stats.php b/inc/modules/guest/what-stats.php
index d507eb38db..24193fda39 100644
--- a/inc/modules/guest/what-stats.php
+++ b/inc/modules/guest/what-stats.php
@@ -73,7 +73,7 @@ switch ($do) {
 
 	default:
 		// Unsupported mode
-		reportBug(__FILE__, __LINE__, sprintf("Unsupported mode <span class=\"data\">%s</span> detected.", sqlEscapeString($do)));
+		reportBug(__FILE__, __LINE__, sprintf('Unsupported mode <span class="data">%s</span> detected.', sqlEscapeString($do)));
 		break;
 } // END - switch
 
diff --git a/inc/mysql-manager.php b/inc/mysql-manager.php
index c26a12b991..b05768a24c 100644
--- a/inc/mysql-manager.php
+++ b/inc/mysql-manager.php
@@ -658,7 +658,7 @@ function addMaxReceiveList ($mode, $default = '') {
 			break;
 
 		default: // Invalid!
-			logDebugMessage(__FUNCTION__, __LINE__, sprintf("Invalid mode %s detected.", $mode));
+			logDebugMessage(__FUNCTION__, __LINE__, sprintf('Invalid mode %s detected.', $mode));
 			break;
 	}
 
@@ -1789,7 +1789,7 @@ function generateReceiverList ($categoryId, $receiver, $mode = '') {
 	if (isValidId($categoryId)) {
 		// Select category
 		$extraColumns  = "LEFT JOIN `{?_MYSQL_PREFIX?}_user_cats` AS `c` ON `d`.`userid`=`c`.`userid`";
-		$addWhere = sprintf(" AND `c`.`cat_id`=%s", $categoryId);
+		$addWhere = sprintf(' AND `c`.`cat_id`=%s', $categoryId);
 	} // END - if
 
 	// Exclude users in holiday?
@@ -2188,7 +2188,7 @@ function doGenericEditEntriesConfirm ($tableName, $columns = array(), $filterFun
 		$content = array();
 
 		// Prepare SQL for this row
-		$sql = sprintf("UPDATE `{?_MYSQL_PREFIX?}_%s` SET",
+		$sql = sprintf('UPDATE `{?_MYSQL_PREFIX?}_%s` SET',
 			sqlEscapeString($tableName[0])
 		);
 
diff --git a/inc/template-functions.php b/inc/template-functions.php
index d3419dd80a..4ec0827401 100644
--- a/inc/template-functions.php
+++ b/inc/template-functions.php
@@ -1497,8 +1497,8 @@ function generateExtensionInactiveNotInstalledMessage ($ext_name) {
 			break;
 
 		default: // Should not happen!
-			logDebugMessage(__FUNCTION__, __LINE__, sprintf("Invalid state of extension %s detected.", $ext_name));
-			$message = sprintf("Invalid state of extension %s detected.", $ext_name);
+			logDebugMessage(__FUNCTION__, __LINE__, sprintf('Invalid state of extension %s detected.', $ext_name));
+			$message = sprintf('Invalid state of extension %s detected.', $ext_name);
 			break;
 	} // END - switch
 
diff --git a/inc/wrapper-functions.php b/inc/wrapper-functions.php
index 191b6164ca..89b6ed3c76 100644
--- a/inc/wrapper-functions.php
+++ b/inc/wrapper-functions.php
@@ -66,7 +66,7 @@ function writeToFile ($FQFN, $content, $aquireLock = FALSE) {
 	// Is the file writeable?
 	if ((isFileReadable($FQFN)) && (!is_writeable($FQFN)) && (!changeMode($FQFN, 0644))) {
 		// Not writeable!
-		logDebugMessage(__FUNCTION__, __LINE__, sprintf("File %s not writeable or cannot change CHMOD to 0644.", basename($FQFN)));
+		logDebugMessage(__FUNCTION__, __LINE__, sprintf('File %s not writeable or cannot change CHMOD to 0644.', basename($FQFN)));
 
 		// Failed! :(
 		return FALSE;
@@ -157,10 +157,10 @@ function merge_array ($array1, $array2, $keepIndex = FALSE) {
 		reportBug(__FUNCTION__, __LINE__, 'No arrays provided!');
 	} elseif (!is_array($array1)) {
 		// Left one is not an array
-		reportBug(__FUNCTION__, __LINE__, sprintf("array1 is not an array. array != %s", gettype($array1)));
+		reportBug(__FUNCTION__, __LINE__, sprintf('array1 is not an array. array != %s', gettype($array1)));
 	} elseif (!is_array($array2)) {
 		// Right one is not an array
-		reportBug(__FUNCTION__, __LINE__, sprintf("array2 is not an array. array != %s", gettype($array2)));
+		reportBug(__FUNCTION__, __LINE__, sprintf('array2 is not an array. array != %s', gettype($array2)));
 	}
 
 	// Maintain index of array2?
diff --git a/templates/de/html/admin/admin_edit_theme_row_404.tpl b/templates/de/html/admin/admin_edit_theme_row_404.tpl
new file mode 100644
index 0000000000..defad70334
--- /dev/null
+++ b/templates/de/html/admin/admin_edit_theme_row_404.tpl
@@ -0,0 +1,23 @@
+<tr>
+	<td class="{%template,ColorSwitch%} bottom right" align="center">
+		{--ADMIN_THEME_NOT_READABLE--}
+	</td>
+	<td class="{%template,ColorSwitch%} bottom right" align="center">
+		$content[link]
+	</td>
+	<td class="{%template,ColorSwitch%} bottom right" align="center">
+		$content[theme_name]
+	</td>
+	<td class="{%template,ColorSwitch%} bottom right" align="center">
+		{%pipe,translateYesNo=$content[theme_active]%}
+	</td>
+	<td class="{%template,ColorSwitch%} bottom right" align="center">
+		$content[email]
+	</td>
+	<td class="{%template,ColorSwitch%} bottom right" align="center">
+		<a href="{%pipe,generateDereferrerUrl=$content[theme_url]%}" target="_blank">$content[theme_url]</a>
+	</td>
+	<td class="{%template,ColorSwitch%} bottom" align="center">
+		v$content[theme_version]
+	</td>
+</tr>