3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null count($a);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected 'count' (T_STRING) in /in/65t52 on line 4
Process exited with code 255.
preferences:
170.63 ms | 1395 KiB | 36 Q