X-Git-Url: https://git.mxchange.org/?p=mailer.git;a=blobdiff_plain;f=inc%2Ffilters.php;h=d1a66567e57ec8d67f81ed989bf92da20ec85b19;hp=5cda96ebf2c825db507989015475aecf07c9bdd0;hb=26ea563a90454a2cde58f8cd134542a0d8f14780;hpb=a30da9ca393c9f03a7e2808f444d9a17357917fd

diff --git a/inc/filters.php b/inc/filters.php
index 5cda96ebf2..d1a66567e5 100644
--- a/inc/filters.php
+++ b/inc/filters.php
@@ -456,11 +456,17 @@ function FILTER_COMPILE_EXTENSION ($code) {
 	if ((count($matches) > 0) && (count($matches[3]) > 0)) {
 		// Replace all matches
 		foreach ($matches[3] as $key => $cmd) {
-			// Construct call-back function name
-			$functionName = 'getExtension' . ucfirst(strtolower($cmd));
+			// By default we have no extension installed, so 'false' is assumed
+			$replacer = 'false';
 
-			// Call the function
-			$replacer = call_user_func_array($functionName, $matches[4][$key]);
+			// Is the extension installed?
+			if (isExtensionActive($matches[4][$key])) {
+				// Construct call-back function name
+				$functionName = 'getExtension' . ucfirst(strtolower($cmd));
+
+				// Call the function
+				$replacer = call_user_func_array($functionName, $matches[4][$key]);
+			} // END - if
 
 			// Replace it and insert parameter for GET request
 			$code = str_replace($matches[0][$key], sprintf("&%s=%s&rev=%s", $cmd, $replacer, getConfig('CURR_SVN_REVISION')), $code);