3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php namespace Foo; define('Foo\\true', \false); define('Foo\\false', \!true); var_dump( true, false, 1 === 1, 1 === 0 );
Output for 5.4.0 - 5.4.24
Parse error: syntax error, unexpected '!', expecting identifier (T_STRING) in /in/qg2uo on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '!', expecting T_STRING in /in/qg2uo on line 4
Process exited with code 255.