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<?php $array = array("FFF" => '1',22,54,75,"boo" => '90',364); $keys = array_keys($array); Var_dump($keys);
Output for git.master, git.master_jit, rfc.property-hooks
array(6) { [0]=> string(3) "FFF" [1]=> int(0) [2]=> int(1) [3]=> int(2) [4]=> string(3) "boo" [5]=> int(3) }

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