3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(0, 0.5, 1, 1.5)); var_dump(array_combine($a, $a);
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.25
Parse error: syntax error, unexpected ')' in /in/l9RRB on line 2
Process exited with code 255.
preferences:
184.47 ms | 1395 KiB | 62 Q