3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?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"; $n=acos(1.01); echo "\nNAN:".$n;
Output for 7.0.0 - 7.1.0
null:FALSE false:FALSE true:TRUE NAN:NAN
Output for 5.3.0 - 5.6.28
null:TRUE false:TRUE true:TRUE NAN:NAN
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/UbigU on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/UbigU on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/UbigU on line 2
Process exited with code 255.