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<?php $array = array("person1" => array(0 => array('k1'=>'v1', 'k2'=>'v2'), 1 => array('k1'=>'v1', 'k2'=>'v2')), "person2" => array(0 => array('k1'=>'v1', 'k2'=>'v2'), 1 => array('k1'=>'v1', 'k2'=>'v2'))); $reset = reset($array); echo $reset[0]['k1']; echo array_flip($array);
Output for git.master, git.master_jit, rfc.property-hooks
v1 Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/3821q on line 5 Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/3821q on line 5 Warning: Array to string conversion in /in/3821q on line 5 Array

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