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<?php $a1 = false; $a2 = ''; $a3 = 0; $a4 = '0'; var_dump(empty($a1)); var_dump(empty($a2)); var_dump(empty($a3)); var_dump(empty($a4));
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(true) bool(true) bool(true)

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