#39896 [NEW]: Massive memory leak

From: poon dot fung at gmail dot com Operating system: Windows XP PHP version: 5.2.0 PHP Bug Type: SimpleXML related Bug description: Massive memory leak Description: ------------ The combination of simplexml and htmlspecialchars() creates massive memory leak. In a about 500k calls to htmlspecialchars() on a value in simplexml, it eats up over 1GB of memory. Reproduce code: --------------- $xml = simplexml_load_file('some_xml_file.xml'); $val = ''; for ($index=0; $index<10000000; $index++) { $val = htmlspecialchars($xml->title); } Expected result: ---------------- If you run the above script and watch Windows Task Manager, you will see memory usage continuous to go up non-stop. -- Edit bug report at http://bugs.php.net/?id=39896&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39896&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39896&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39896&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=39896&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=39896&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=39896&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=39896&r=needscript Try newer version: http://bugs.php.net/fix.php?id=39896&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=39896&r=support Expected behavior: http://bugs.php.net/fix.php?id=39896&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=39896&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=39896&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=39896&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39896&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=39896&r=dst IIS Stability: http://bugs.php.net/fix.php?id=39896&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=39896&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=39896&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=39896&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=39896&r=mysqlcfg