From: Roland Haeder <roland@mxchange.org>
Date: Fri, 3 Apr 2015 17:50:19 +0000 (+0200)
Subject: dl() is not always available in all supported PHP versions (SAPIs from 5.3+ may
X-Git-Url: https://git.mxchange.org/?p=mailer.git;a=commitdiff_plain;h=3d9e10c043644977bec99d3926b0fe20ded0b084

dl() is not always available in all supported PHP versions (SAPIs from 5.3+ may
not contain it, why?). Maybe it is not contained due to security reasons?

Signed-off-by: Roland Häder <roland@mxchange.org>
---

diff --git a/inc/filter-functions.php b/inc/filter-functions.php
index 939cd84d5b..7ee7241b44 100644
--- a/inc/filter-functions.php
+++ b/inc/filter-functions.php
@@ -292,7 +292,7 @@ function runFilterChain ($filterName, $filterData = NULL) {
 
 	// Is that filter chain there?
 	if (!isset($GLOBALS['cache_array']['filter']['chains'][$filterName])) {
-		// Log not found filters in debug-mode
+		// Filter chain not found filters in debug-mode
 		if (isDebugModeEnabled()) {
 			// Log it away...
 			logDebugMessage(__FUNCTION__, __LINE__, 'Filter chain ' . $filterName . ' does not exist.');
diff --git a/inc/functions.php b/inc/functions.php
index a5a92f5ecf..86027cf9de 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -2913,9 +2913,16 @@ function isPhpExtensionLoaded ($extension) {
 }
 
 // Loads given library (aka. PHP extension)
-// Credits: shaunspiller at spammenot-gmail dot com ( http://de.php.net/dl#88566 )
 function loadLibrary ($n, $f = NULL) {
-	return extension_loaded($n) or dl(((PHP_SHLIB_SUFFIX === 'dll') ? 'php_' : '') . ($f ? $f : $n) . '.' . PHP_SHLIB_SUFFIX);
+	// Is the actual function dl() available? (Not on all SAPIs since 5.3)
+	if (!is_callable('dl')) {
+		// Not callable
+		/* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'dl() is not callable for n=' . $n . ',f[' . gettype($f) . ']=' . $f);
+		return FALSE;
+	} // END - if
+
+	// Try to load PHP library
+	return dl(((PHP_SHLIB_SUFFIX === 'dll') ? 'php_' : '') . ($f ? $f : $n) . '.' . PHP_SHLIB_SUFFIX);
 }
 
 // "Translates" given PHP extension name into a readable version