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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); $a[] = array(); var_dump(empty($a)); var_dump(isset($a)); var_dump(count($a)); //var_dump($a); $b = array_filter($a); var_dump(empty($b));
Output for 4.3.0 - 7.1.0
bool(false) bool(true) int(1) bool(true)