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<?php $x = array(array('u'=>123), array('u'=>321)); $ids = array_map('reset', $x); var_dump($ids);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: reset(): Argument #1 ($array) must be passed by reference, value given in /in/VBaUY on line 3 Warning: reset(): Argument #1 ($array) must be passed by reference, value given in /in/VBaUY on line 3 array(2) { [0]=> int(123) [1]=> int(321) }

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