Merge pull request #4493 from Bregi/fix-c-file-cache-get-value

PHP 8.1 compatibility fix for CFileCache

Author: marcovtwout

CHANGELOG

@@ -4,7 +4,7 @@
 Version 1.1.27 under development
 --------------------------------
 
-- No changes yet
+- Bug: PHP 8.1 compatibility: Fix CFileCache call of file_get_contents (Bregi)
 
 Version 1.1.26 September 30, 2022
 --------------------------------

framework/caching/CFileCache.php

@@ -130,7 +130,7 @@ protected function getValue($key)
 	{
 		$cacheFile=$this->getCacheFile($key);
 		if(($time=$this->filemtime($cacheFile))>time())
-			return @file_get_contents($cacheFile,false,null,$this->embedExpiry ? 10 : null);
+			return @file_get_contents($cacheFile,false,null,$this->embedExpiry ? 10 : 0);
 		elseif($time>0)
 			@unlink($cacheFile);
 		return false;