多维数组中相同元素相加有关问题

多维数组中相同元素相加问题

本帖最后由 myths621 于 2013-03-19 12:04:11 编辑 首次发帖，请假高手
我从redis中取出五维数组需要处理相加，如下

<br />
$a = array(<br />
	<br />
		0 => array(<br />
<br />
			0=> array(<br />
			<br />
				"date" => "201201",<br />
				"area"=> array(<br />
					12 => array(<br />
						click => "3",<br />
						traffic => "30"<br />
					)	<br />
				)<br />
			),	<br />
<br />
			1=> array(<br />
			<br />
				"date" => "201202",<br />
				"area"=> array(<br />
					12 => array(<br />
						click => "8",<br />
						traffic => "40"<br />
					),<br />
					8=> array(<br />
						click => "5",<br />
						traffic => "50"<br />
					)<br />
				)<br />
			)	<br />
			<br />
		),<br />
<br />
		1 => array(<br />
		<br />
			0=> array(<br />
			<br />
				"date" => "201201",<br />
				"area"=> array(<br />
					12 => array(<br />
						click => "9",<br />
						traffic => "20"<br />
					),<br />
					8=> array(<br />
						click => "6",<br />
						traffic => "60"<br />
					)<br />
				)<br />
				),<br />
			<br />
			1=> array(<br />
			<br />
				"date" => "201202",<br />
				"area" => NULL<br />
			)<br />
		),<br />
	<br />
	<br />
	);<br />
<br />

希望数据处理后，相同date前提下，area里相同的key所对应的click和traffic值相加，即0和1这两个大数组，date为201001的，area中12所对应的click和traffic处理后应该是12和50,8对应的是6和60，其他类推，求遍历或其他能处理成功的方法，感激不尽~！

多维数组
------解决方案--------------------
最后结果是怎么样的？ 贴一下。
------解决方案--------------------

$t = array();<br />
foreach ($a as $k=>$v)<br />
{<br />
	foreach ($v as $k1=>$v1)<br />
	{<br />
		$t[0][$k1]['date'] = $v1['date'];<br />
		foreach ($v1['area'] as $k2=>$v2)<br />
		{<br />
			$t[0][$k1]['area'][$k2]['click'] += $v2['click'];<br />
			$t[0][$k1]['area'][$k2]['traffic'] += $v2['traffic'];<br />
		}<br />
	}<br />
}<br />
echo "<pre class="brush:php;toolbar:false">";<br />
print_r($t);<br />
echo "<pre class="brush:php;toolbar:false">";

结果如下：

<br>
Array<br>
(<br>
    [0] => Array<br>
        (<br>
            [0] => Array<br>
                (<br>
                    [date] => 201201<br>
                    [area] => Array<br>
                        (<br>
                            [12] => Array<br>
                                (<br>
                                    [click] => 12 <div class="clear">
                 
              
              
        
            </div>