#38504 [Bgs]: class_exists strange behaviour

ID: 38504 Updated by: tony2001@php.net Reported By: kn1g at yahoo dot com dot br Status: Bogus Bug Type: Class/Object related Operating System: Linux PHP Version: 4.4.4 New Comment: You can always add a note youself. Previous Comments: ------------------------------------------------------------------------ [2006-08-19 02:45:09] kn1g at yahoo dot com dot br I see, well, I think that class_exists function manual could have a note warning about this (I didn't find this information anywhere). ------------------------------------------------------------------------ [2006-08-18 20:38:56] tony2001@php.net Classes are declared during the compile time. So the class DOES exist and when you actually run the code, the if condition evaluates to TRUE, hence return is executed. This is expected behaviour. ------------------------------------------------------------------------ [2006-08-18 18:27:15] kn1g at yahoo dot com dot br Description: ------------ class_exists with return appears to avoid setting a variable after a class definition. Avoiding the return inside the if block like work as expected: <? if(!class_exists('newclass')){ class newclass(){ } } $var_newclass = "newclass ok\n"; ?> But I couldn't find anything in the documentation explaining this behaviour. Reproduce code: --------------- "class.php" <? if(class_exists('newclass')){ return; } class newclass{ function newclass(){ echo "hi\n"; } } $var_newclass = "newclass ok\n"; ?> "test.php" <? include("class.php"); new newclass; echo $var_newclass; ?> Expected result: ---------------- hi newclass ok Actual result: -------------- hi ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=38504&edit=1