3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('TRUE', false); if (TRUE) { echo "TRUE"; } else { echo "FALSE!!!"; }

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for branch master
Notice: Constant TRUE already defined in /in/D1p4k on line 2 TRUE

Archived branches

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