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<?php $a = ['a', 1, true, 0, false, '', null]; foreach($a as $e) { var_dump($e ?? 'empty'); }
Output for git.master, git.master_jit, rfc.property-hooks
string(1) "a" int(1) bool(true) int(0) bool(false) string(0) "" string(5) "empty"

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