3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = []]; print $a['hello'] ?? 'world'; print "\n";
Output for 8.0.1 - 8.0.19, 8.1.0 - 8.1.6
Parse error: Unmatched ']' in /in/M2AP6 on line 3
Process exited with code 255.
Output for 7.4.0 - 7.4.29
Parse error: syntax error, unexpected ']' in /in/M2AP6 on line 3
Process exited with code 255.

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