Bug #13587 Updated: Recurence makes crash

ID: 13587 Updated by: jeroen Reported By: kelcon@ceti.pl Old Status: Bogus Status: Open Bug Type: Reproducible crash Operating System: Win98 PHP Version: 4.0.6 New Comment: PHP shouldn't crash on this, rather a stack overflow error should be emitted. There's no single circumstance that PHP may crash. Of course it's impossible to check program logic at compile time, but a runtime error is appropriate in this case. Derick: Some languages DO support 'infinite' recursion (of course not in this way), they use a technique called lazy evaluation. Reproduced with latest CVS Previous Comments: ------------------------------------------------------------------------ [2001-10-07 14:44:26] mfischer@php.net What do you expect from an infinite recursion? You can't expect the parser knowing what you are doing. What if you implement n! this way? How should the parser know it? Btw, even perl segfaults on such things ;) No bug -> bogusified. - Markus ------------------------------------------------------------------------ [2001-10-07 14:41:48] derick@php.net There is no clean way to catch this. PHP does not support infinite recursion, as no language does. The performance hit is too big if this kind of checking was build in, and even then it's not very easy to do in a smart way. Closing, Derick ------------------------------------------------------------------------ [2001-10-07 14:31:58] kelcon@ceti.pl class someclass { function error() { return $this->error() } } Running $instance->error() crashes php on windows (it should be catch when source is parsed). ------------------------------------------------------------------------ Edit this bug report at http://bugs.php.net/?id=13587&edit=1