3v4l.org

run code in 300+ PHP versions simultaneously
<?php $firstClass = strlen(...); var_dump($firstClass('12345'));
Output for 8.1.9 - 8.1.33, 8.2.21 - 8.2.29, 8.3.5 - 8.3.25, 8.4.1 - 8.4.12
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:
63.19 ms | 406 KiB | 5 Q