3v4l.org

run code in 300+ PHP versions simultaneously
<?php const Foo\true = false; if (Foo\true) { echo "TRUE"; } else { echo "FALSE!!!"; }
Output for 5.4.0 - 5.4.28, 5.5.0 - 5.5.12
Parse error: syntax error, unexpected '\' (T_NS_SEPARATOR), expecting '=' in /in/PvR9h on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_NS_SEPARATOR, expecting '=' in /in/PvR9h on line 3
Process exited with code 255.
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218.81 ms | 1395 KiB | 78 Q