3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function foo() { class B{} } }
Output for 5.6.38, 7.0.33, 7.1.25, 7.2.0 - 7.2.13, 7.3.0
Fatal error: Class declarations may not be nested in /in/sEUB0 on line 7
Process exited with code 255.
preferences:
165.44 ms | 1008 KiB | 7 Q