3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'test'; $test = array['test' => 'hello', 0 => 'zero', 1 => 'one']; echo $$a[0];
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.20
Parse error: syntax error, unexpected '[', expecting '(' in /in/TtkVE on line 4
Process exited with code 255.
preferences:
171.43 ms | 1395 KiB | 56 Q