3v4l.org

run code in 300+ PHP versions simultaneously
<?php $instance = new class {}; $c = get_class($instance); $buf = substr($c, -14); $class_name = "class@anonymous".chr(0).__FILE__.$buf; eval("$x = new $class_name extends stdClass{};"); var_dump($x);

preferences:
54.73 ms | 402 KiB | 5 Q