3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo; define('Foo\\true', false); if (true) { echo "TRUE"; } else { echo "FALSE!!!"; } true=false
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.21
Parse error: syntax error, unexpected '=' in /in/FXBsF on line 11
Process exited with code 255.
preferences:
193.97 ms | 1395 KiB | 57 Q