3v4l.org

run code in 300+ PHP versions simultaneously
<?php $t = array('foo' => array())); var_dump(isset($t['foo']));
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.30
Parse error: syntax error, unexpected ')' in /in/DKkQK on line 3
Process exited with code 255.
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193.92 ms | 1399 KiB | 67 Q