Bug #79516 [Com]: class_exists returns true for disabled classes

Edit report at https://bugs.php.net/bug.php?id=79516&edit=1 ID: 79516 Comment by: bugreports at gmail dot com Reported by: 392223903 at qq dot com Summary: class_exists returns true for disabled classes Status: Open Type: Bug Package: *General Issues Operating System: win10,win7 PHP Version: 7.2.30 Block user comment: N Private report: N New Comment: > I could have sworn that function_exists returned true no, it's the way to go virtually forever to write defensive code for optional stuff like "read exif data and put it in the database due upload, otherwise you have to type it by hand" > I don't like the inconsistency either yes, class_exists() should behave identical Previous Comments: ------------------------------------------------------------------------ [2020-04-24 14:49:41] requinix@php.net I could have sworn that function_exists returned true... Apparently not. I don't like the inconsistency either. ------------------------------------------------------------------------ [2020-04-24 07:50:35] 392223903 at qq dot com This is not a documentation issue. Because using the disable_functions configuration item and function_exists method to judge is correct Examples: 1.disable_functions = md5 2.var_dump(function_exists ('md5')); //this return false disable_classes + class_exists Does not match disable_functions + function_exists Is a match ------------------------------------------------------------------------ [2020-04-24 06:33:35] requinix@php.net disable_classes and disable_functions prevent you from using them. It does not block them from being registered into the engine. The docs should go into more detail about this behavior. ------------------------------------------------------------------------ [2020-04-24 03:14:06] 392223903 at qq dot com Description: ------------ (1).php.ini conf disable_classes = com (2).php code check var_dump(class_exists('Com')); //return true ? I disabled it! why ? But the disable_functions configuration item and function_exists method are correct。 this bug in php5.x-php7.x version ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79516&edit=1