3v4l.org

run code in 300+ PHP versions simultaneously

@ 2013-03-28T04:20:18Z

<?php
$A = array(
        'Z'=>array('d'=>array(
                                'v1'=>10,
                                'v2'=>20,
                                'v3'=>30

                                )
                   ),
        'A'=>array('a'=>array(
                                'v1'=>1,
                                'v2'=>2,
                                'v3'=>3

                                ),
                  'b'=>array(
                                'v1'=>1,
                                'v2'=>2,
                                'v3'=>3                                
                                )
                   ),
        'B'=>array('a'=>array(
                                'v1'=>1,
                                'v2'=>2,
                                'v3'=>3

                                ),
                     'b'=>array(
                                'v1'=>1,
                                'v2'=>2,
                                'v3'=>3                                
                                )
                   ),
        'C'=>array('a'=>array(
                                'v1'=>9,
                                'v2'=>8,
                                'v3'=>7

                                ),
                     'b'=>array(
                                'v1'=>6,
                                'v2'=>5,
                                'v3'=>4                                
                                )
                   )
        );
$total=array_reduce($A,function(&$r,$v){
	array_walk($v,function($val,$key)use(&$r){
		if(!isset($r[$key])) $r[$key]=array();
		array_walk($val,function($vv,$vk)use(&$r,$key){
			if(!isset($r[$key][$vk])) $r[$key][$vk]=0;
			$r[$key][$vk]+=$vv;
		});
	});
	return $r;
},array());
print_r($total);

array_reduce: documentation ( source)
print_r: documentation ( source)
array_walk: documentation ( source)

preferences:dark modelive preview

41.1 ms | 402 KiB | 5 Q