From: Operating system: Debian PHP version: 5.2.13 Package: Reproducible crash Bug Type: Bug Bug description:is_subclass_of fails to autoload the classes
Description: ------------ is_subclass_of fails to autoload the classes causing PHP do die and apache returns an empty page. NO error is triggered ! It was very hard to find the cause My php config it's here: http://alex.softdev.ro/info.php Failing function: function ClassIsA($object_class, $class) { if ($object_class == $class) return true; return (is_subclass_of($object_class, $class)); } If changed it works: function ClassIsA($object_class, $class) { // use this to force the load of the classes if (!class_exists($object_class)) throw new Exception("Class $object_class not found"); // use this to force the load of the classes if (!class_exists($class)) throw new Exception("Class $class not found"); if ($object_class == $class) return true; return (is_subclass_of($object_class, $class)); } looks like calling class_exists calls autoload and works fine Thanks, Alex Test script: --------------- Failing function: function ClassIsA($object_class, $class) { if ($object_class == $class) return true; return (is_subclass_of($object_class, $class)); } If changed it works: function ClassIsA($object_class, $class) { // use this to force the load of the classes if (!class_exists($object_class)) throw new Exception("Class $object_class not found"); // use this to force the load of the classes if (!class_exists($class)) throw new Exception("Class $class not found"); if ($object_class == $class) return true; return (is_subclass_of($object_class, $class)); } -- Edit bug report at http://bugs.php.net/bug.php?id=51570&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=51570&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=51570&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=51570&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=51570&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51570&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=51570&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=51570&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=51570&r=needscript Try newer version: http://bugs.php.net/fix.php?id=51570&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=51570&r=support Expected behavior: http://bugs.php.net/fix.php?id=51570&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=51570&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=51570&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=51570&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51570&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=51570&r=dst IIS Stability: http://bugs.php.net/fix.php?id=51570&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=51570&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=51570&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=51570&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=51570&r=mysqlcfg