3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function imageFilename() { return array(); } var_dump(array_filter(array_map('imageFilename', array())));
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(0) { }