--TEST-- Bug #26697 (calling class_exists on a nonexistent class in __autoload results in segfault) --FILE-- <?php spl_autoload_register(function ($name) { echo __METHOD__ . "($name)\n"; var_dump(class_exists('NotExistingClass')); echo __METHOD__ . "($name), done\n"; }); var_dump(class_exists('NotExistingClass')); ?> ===DONE=== --EXPECT-- {closure}(NotExistingClass) bool(false) {closure}(NotExistingClass), done bool(false) ===DONE===