php-8.0.30-src/ext/spl/tests/bug52339.phpt

--TEST--
Bug #52339: SPL autoloader breaks class_exists()
--FILE--
<?php
var_dump(class_exists('asdfasdf'));
spl_autoload_register();
var_dump(class_exists('asdfasdf'));
?>
--EXPECT--
bool(false)
bool(false)