3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null var_dump($a === null); var_dump(isset($a));
Output for 5.4.0 - 5.4.17
Parse error: syntax error, unexpected 'var_dump' (T_STRING) in /in/kvaUs on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_STRING in /in/kvaUs on line 3
Process exited with code 255.
preferences:
187.01 ms | 1399 KiB | 53 Q