3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mode = "foo"; var_dump(in_array($mode, [0, 1]);
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected ';' in /in/DTbsO on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[' in /in/DTbsO on line 5
Process exited with code 255.

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