php过滤多维数组,该如何处理

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Release: 2016-06-13 10:54:26
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php过滤多维数组
Array ( 
[0] => Array ( 
[isxinx] => 1 
[rate] => 0.000 
[qs] => 177期预测 
[cb] => 20 
[title] => 【码到成功】福彩3D177期试机号前信心预测 
[id] => 4137166 
[userid] => 22843 
[childtype] => 试机号前 
[mfarticleid] => 0 
[author] => 码到成功 
[pubtime] => 2012-07-23 14:18:30 
[cptypeid] => 2 
[jtpath] => 
[num] => 2 
[ltitle] => 历史成绩 
[pm] => 10001 ) 
[1] => Array ( 
[isxinx] => 1 
[rate] => 0.000 
[qs] => 177期预测 
[cb] => 20 
[title] => 【码到成功】福彩3D177期试机号前信心预测 
[id] => 4137166 
[userid] => 22843 
[childtype] => 试机号前 
[mfarticleid] => 0 
[author] => 码到成功 
[pubtime] => 2012-07-23 14:18:30 
[cptypeid] => 2 
[jtpath] => 
[num] => 2 
[ltitle] => 历史成绩 
[pm] => 10001 ))

我现在就想取qs、cb、title、id、userid、author、ltitle
这七个字段的数据!请问一下这样怎么过滤掉其他的呢

------解决方案--------------------
foreach($arr as $v)
$ar[]=array('qs'=>$v['qs'],...............);

print_r($ar);
------解决方案--------------------
樓上回覆正確!
不過看的數據來源好像是從數據庫中獲取的,最好的方式應該是select的時候把字段名寫上,而应该避免使用select *

SQL code
select qs,cb,title,id,userid,author,ltitle from table<div class="clear">
                 
              
              
        
            </div>
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