3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace {Foo}; define('Foo\\null', true, true); define('Foo\\false', true, true); define("Foo\\NAN", 1337, true); echo 'null:';if (null) echo "TRUE";else echo "FALSE"; echo "\nfalse:";if (false) echo "TRUE";else echo "FALSE"; echo "\ntrue:";if (true) echo "TRUE";else echo "FALSE";
Output for 5.3.0 - 5.3.24, 5.4.0 - 5.4.14
Parse error: syntax error, unexpected '}' in /in/crXui on line 2
Process exited with code 255.
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174.26 ms | 1395 KiB | 47 Q