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Bugs & Features
<?php $a = array(); $a[] = array(); var_dump(empty($a)); var_dump(isset($a)); var_dump(count($a)); var_dump($a); var_dump(isset(array_filter($a)));
Output for hhvm-3.10.0 - 3.12.0
bool(false) bool(true) int(1) array(1) { [0]=> array(0) { } } bool(true)
Output for 5.3.0 - 5.4.11
Fatal error: Can't use function return value in write context in /in/TkITv on line 10
Process exited with code 255.