多维数组中相同元素相加有关问题-PHP Tutorial-php.cn

多维数组中相同元素相加有关问题

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Release： 2016-06-13 11:17:53

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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 />

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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">";

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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>

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