3v4l.org

run code in 300+ PHP versions simultaneously
<?php x = 1; x = 5; if(x xor x) { echo "Xor available."; } else { echo "Unavailable."; } ?>
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.17
Parse error: syntax error, unexpected '=' in /in/1XFSJ on line 3
Process exited with code 255.
preferences:
176.91 ms | 1395 KiB | 53 Q