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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = ''; $b = null; $c = false; var_dump('' === $a, '' === $b, '' === $c, empty($b), empty($c));
Output for 4.3.0 - 7.2.0
bool(true) bool(false) bool(false) bool(true) bool(true)