#44636 [NEW]: class_exists() memory leak

From: bigtree at 29a dot nl Operating system: FreeBSD 6.1-RELEASE-p10 PHP version: 5.2.5 PHP Bug Type: Class/Object related Bug description: class_exists() memory leak Description: ------------ When implicitely casting class_exists() to a boolean, a memory leak occurs. It does not matter if the given class exists or not. Reproduce code: --------------- for ($i = 1; $i < 100; $i++) { if (class_exists('foo')) { } echo memory_get_usage() . "\n"; } Expected result: ---------------- A constant amount of memory (at least after the first iteratation) Actual result: -------------- A growing amount of used memory. A workaround can be: if ((boolean)class_exists('foo')) { } or $foo = class_exists('foo'); if ($foo) {} in these cases the memory leak does not occur -- Edit bug report at http://bugs.php.net/?id=44636&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44636&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44636&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44636&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=44636&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=44636&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=44636&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=44636&r=needscript Try newer version: http://bugs.php.net/fix.php?id=44636&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=44636&r=support Expected behavior: http://bugs.php.net/fix.php?id=44636&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=44636&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=44636&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=44636&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44636&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=44636&r=dst IIS Stability: http://bugs.php.net/fix.php?id=44636&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=44636&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=44636&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=44636&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=44636&r=mysqlcfg