3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php define('CONSTANT',1); define('_CONSTANT',0); define('EMPTY',''); if(!empty(constant(EMPTY))) { if(!(boolean) _CONSTANT) { print "one"; } }
Output for 5.3.0 - 5.4.25
Parse error: syntax error, unexpected ')', expecting '(' in /in/P6OBp on line 6
Process exited with code 255.