3v4l.org

run code in 300+ PHP versions simultaneously
<?php $d = [1,2,3,4]; $c = [1,2,3,4]; var_dump(array_merge($d,c);
Output for 5.4.0 - 5.4.21
Parse error: syntax error, unexpected ';' in /in/2AqgC on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected '[' in /in/2AqgC on line 2
Process exited with code 255.
preferences:
184.49 ms | 1395 KiB | 57 Q