3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = [ 0 -> 1 ]; echo $x; ?>
Output for 5.4.0 - 5.4.19
Parse error: syntax error, unexpected '->' (T_OBJECT_OPERATOR), expecting ']' in /in/7I6hq on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected '[' in /in/7I6hq on line 2
Process exited with code 255.
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180.72 ms | 1395 KiB | 55 Q