Req #63538 [Asn]: "Call to undefined function" should be catchable

Edit report at https://bugs.php.net/bug.php?id=63538&edit=1 ID: 63538 Updated by: yohgaki@php.net Reported by: indeyets@php.net Summary: "Call to undefined function" should be catchable Status: Assigned Type: Feature/Change Request Package: Scripting Engine problem Operating System: any PHP Version: 5.5.0alpha1 Assigned To: yohgaki Block user comment: N Private report: N New Comment: This is a PoC patch for catching E_ERROR/E_PARSE. https://github.com/yohgaki/php-src/compare/master-catch-e_error Previous Comments: ------------------------------------------------------------------------ [2013-06-28 07:14:05] yohgaki@php.net Old PHPs were able to catch E_ERROR. I always think E_ERROR should be able to catch by user defined error handler. The reason why E_ERROR made uncatchable is there were many users that shot their own foot by not terminating execution. However, user should be able to own foot by catching E_ERROR. I think PHP should give chance user to display 500 page. ------------------------------------------------------------------------ [2013-04-30 11:28:07] jevon at jevon dot org In particular, this would allow developers to handle undefined functions in batch scripts and the like. Since one can catch undefined classes (through an autoloader), undefined class methods (through __call() and __callStatic()) and undefined variables (through set_error_handler()), why shouldn't we be able to catch undefined functions? ------------------------------------------------------------------------ [2012-11-29 10:37:38] indeyets@php.net bensor987 that's a separate issue. autoloader is a specific solution, while ability to handle such error is more generic ------------------------------------------------------------------------ [2012-11-29 10:15:05] bensor987 at neuf dot fr I think it is better to add a function autoloader, instead of just catching this error. ------------------------------------------------------------------------ [2012-11-23 19:37:12] lubosdz at hotmail dot com What about function_exists() ? set_error_handler(function($errno , $errstr){ if (!function_exists('there_is_no_me')) { function there_is_no_me(){ echo "Here am I!\n"; } } }); lubosdz ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=63538 -- Edit this bug report at https://bugs.php.net/bug.php?id=63538&edit=1