3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo() { return function() { echo 'hello'; } }; $f = foo()();
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.21
Parse error: syntax error, unexpected '}' in /in/s7jib on line 6
Process exited with code 255.
preferences:
169.57 ms | 1399 KiB | 57 Q