3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php define('CONSTANT', 1); define('_CONSTANT', 0); define('EMPTY', ''); var_dump(empty(EMPTY));
Output for 5.4.0 - 5.4.20
Parse error: syntax error, unexpected 'EMPTY' (T_EMPTY) in /in/hvBfE on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_EMPTY in /in/hvBfE on line 6
Process exited with code 255.