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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(empty('')); var_dump(empty(true)); var_dump(empty(false)); var_dump(empty(null)); var_dump(empty($notset)); $array=[]; var_dump(empty($array['notset']));
based on bh9eL
Output for 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.30 - 7.3.0alpha1
bool(true) bool(false) bool(true) bool(true) bool(true) bool(true)