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<?php var_dump(empty($void)); https://gathering.tweakers.net/forum/list_message/45543837#45543837 $inputs = array(0, 0.0, 0.00, 0.00000000000); foreach ($inputs as $v) { var_dump($v, empty($v)); }
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) int(0) bool(true) float(0) bool(true) float(0) bool(true) float(0) bool(true)

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