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<?php $array = [ [ '', 1, '', 108, '', ], [ '', 1, '', 108, '', 101, ], [ '', '', 108, '', ] ]; $array = array_unique(array_filter(array_merge(...$array))); var_dump($array);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [1]=> int(1) [3]=> int(108) [10]=> int(101) }

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