#41536 [NEW]: debug_backtrace crashes server by using call_user_func

From: ymasaki at gmail dot com Operating system: Windows Vista PHP version: 5.2.2 PHP Bug Type: Scripting Engine problem Bug description: debug_backtrace crashes server by using call_user_func Description: ------------ debug_backtrace() crashes apache by using call_user_func. Reproduce code: --------------- <?php $class = new Test; $class->callMethod("execute"); class Test { function backtrace(){ return debug_backtrace(); } function display($dummy,$bk){ print_r($bk); } function display2($bk){ print_r($bk); } function callMethod($methodname){ $ret = call_user_func(array($this,$methodname)); return $ret; } function execute(){ //CRASH! $this->display("dummy",$this->backtrace()); //this works fine // $this->display("dummy",debug_backtrace()); //this works fine too (only one arg) // $this->display2($this->backtrace()); } } Expected result: ---------------- crash apache server Actual result: -------------- print backtrace normally -- Edit bug report at http://bugs.php.net/?id=41536&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=41536&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=41536&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=41536&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=41536&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=41536&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=41536&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=41536&r=needscript Try newer version: http://bugs.php.net/fix.php?id=41536&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=41536&r=support Expected behavior: http://bugs.php.net/fix.php?id=41536&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=41536&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=41536&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=41536&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41536&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=41536&r=dst IIS Stability: http://bugs.php.net/fix.php?id=41536&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=41536&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=41536&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=41536&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=41536&r=mysqlcfg