3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php namespace Foo { define('Foo\\null', true, true); define('Foo\\false', true, true); //define("Foo\\M_PI", 413, true); echo 'null:';if (null) echo "TRUE";else echo "FALSE"; echo ' false:';if (false) echo "TRUE";else echo "FALSE"; echo ' true:';if (true) echo "TRUE";else echo "FALSE"; echo ' M_PI:'.M_PI.' π'; }
Output for 7.0.0 - 7.2.0
null:FALSE false:FALSE true:TRUE M_PI:3.1415926535898 π
Output for 5.3.0 - 5.6.28
null:TRUE false:TRUE true:TRUE M_PI:3.1415926535898 π
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/Rc13c 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/Rc13c on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Rc13c on line 2
Process exited with code 255.