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<?php $arr = [ ['member' => 'john', 'date' => 'today'], ['member' => 'jack', 'date' => 'yesterday'] ]; var_dump($arr); var_dump(array_keys($arr));
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> array(2) { ["member"]=> string(4) "john" ["date"]=> string(5) "today" } [1]=> array(2) { ["member"]=> string(4) "jack" ["date"]=> string(9) "yesterday" } } array(2) { [0]=> int(0) [1]=> int(1) }

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