3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f($a+b) { $c = $a+$b } f(1); f(1, 2); f(1, 2, 3); f(1, 2, 3, 4); f(1, 2, 3, 4, 5); ?>
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.24
Parse error: syntax error, unexpected '+', expecting ')' in /in/kI1vQ on line 2
Process exited with code 255.
preferences:
187.84 ms | 1395 KiB | 61 Q