#48847 [NEW]: debug_backtrace doesn't reference arguments in stack in some cases

From: an0nym at narod dot ru Operating system: * PHP version: 5.3.0 PHP Bug Type: Unknown/Other Function Bug description: debug_backtrace doesn't reference arguments in stack in some cases Description: ------------ When argument of function or method is defined with type declaration and default value and is called with some value of this argument, debug_backtrace() doesn't reference this argument of function in stack. When function definition is the same except argument doesn't have default value, everything goes normal. Reproduce code: --------------- <?php function error($message,$number){ $traces=debug_backtrace(); $traces[1]['args'][0]='1'; return TRUE; } set_error_handler('error'); function a(anyUndefinedType $a){ // E_RECOVERABLE_ERROR var_dump($a===1,$a==='1'); } function b(anyUndefinedType $b=NULL){ // E_RECOVERABLE_ERROR var_dump($b===1,$b==='1'); } a(1); b(1); ?> Expected result: ---------------- bool(false) bool(true) bool(false) bool(true) Actual result: -------------- bool(false) bool(true) bool(true) bool(false) -- Edit bug report at http://bugs.php.net/?id=48847&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=48847&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=48847&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=48847&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=48847&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=48847&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=48847&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=48847&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=48847&r=needscript Try newer version: http://bugs.php.net/fix.php?id=48847&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=48847&r=support Expected behavior: http://bugs.php.net/fix.php?id=48847&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=48847&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=48847&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=48847&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48847&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=48847&r=dst IIS Stability: http://bugs.php.net/fix.php?id=48847&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=48847&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=48847&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=48847&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=48847&r=mysqlcfg