3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump('1' <=> 2); var_dump('2' <=> 1); var_dump('1' <=> null); var_dump(null <=> null)
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.30, 5.6.7 - 5.6.14
Parse error: syntax error, unexpected '>' in /in/OQYYl on line 3
Process exited with code 255.
preferences:
185.39 ms | 1395 KiB | 67 Q