3v4l.org

run code in 300+ PHP versions simultaneously
<?php function func($x, $x=1, $x=2) { return $x; } echo func(3,4);
Output for 7.0.0 - 7.0.1
Fatal error: Redefinition of parameter $x in /in/oHT2L on line 3
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
2
preferences:
171.57 ms | 1395 KiB | 36 Q