3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $var = 'sa'; var_dump(!empty($var)); $var = null; var_dump(!empty($var)); $var = 1; var_dump(!empty($var)); $var = 0; var_dump(!empty($var)); $var = "sa"; var_dump(!empty($var));
based on BX13g
Output for 4.3.0 - 7.1.0
bool(true) bool(false) bool(true) bool(false) bool(true)