3v4l.org

run code in 300+ PHP versions simultaneously
<?php $firstClass = strlen(...); var_dump($firstClass('12345'));
Output for 8.1.9
int(5)
Output for 8.0.22
Parse error: syntax error, unexpected token ")" in /in/dhFam on line 3
Process exited with code 255.
preferences:
159.27 ms | 1394 KiB | 9 Q