//任意多个相同键值的数组合并相加
//预先将所要合并的数组组装成一个新的数组
function comm_sumarrs($arr){
    $item = array();
    foreach($arr as $key=>$value){
        foreach($value as $k=>$v){
            if(isset($item[$k])){
                $item[$k] = $item[$k] +$v;
            }else{
                $item[$k] = $v;
            }
        }
    }
    arsort($item);
    return $item;
}
 
$a[] = [125 => 15, 123 => 15, 126 => 15, 135 => 15, 136 => 15, 124=> 15];
$a[] = [123 => 6, 124 => 7, 125 => 7, 126 => 8];
//调用即可
var_dump(comm_sumarrs($a));

				

					
				
				

					
				
				

					
				
				

					
				
			

转自：https://blog.csdn.net/weixin_34247032/article/details/94517419