php-src/Zend/tests/bug26697.phpt

--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===