3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a' = >, 'b' => 2); echo $arr['a'] ? $arr['a'] : $arr['b'];
Output for 5.3.0 - 5.3.24, 5.4.0 - 5.4.14
Parse error: syntax error, unexpected '=', expecting ')' in /in/icAl5 on line 2
Process exited with code 255.
preferences:
174.95 ms | 1395 KiB | 47 Q