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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = new stdClass(); $tmp = (array) $a; var_dump(empty($tmp)); var_dump(empty($a)); if ($a == null) { echo "null"; print_r($a); } else if (empty($a)){ echo "empty"; print_r($a); }else if (!isset($a)){ echo "set"; print_r($a); } var_dump(empty($tmp));
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(true) bool(false) bool(true)
Output for 4.3.0 - 4.4.9
bool(true) bool(true) nullstdClass Object ( ) bool(true)