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恳求帮忙,php比较两个二维数组并按键排序查出重复值。

WBOY
WBOYOriginal
2016-06-13 12:37:41896browse

恳请帮忙,php比较两个二维数组并按键排序查出重复值。。
示例如下:

<br />
$arr1=array(<br />
   0=>array('pid'=>1,name=>'user1'),<br />
   1=>array('pid'=>2,name=>'user2')<br />
);<br />

<br />
$arr2=array(<br />
   0=>array('pid'=>3,name=>'user1'),<br />
   1=>array('pid'=>4,name=>'user4')<br />
);<br />

我要得到下面这样的结果:
<br />
$arr2=array(<br />
   0=>array('pid'=>1,name=>'user1'),<br />
   1=>array('pid'=>2,name=>'user2')<br />
   2=>array('pid'=>3,name=>'user3'),<br />
   3=>array('pid'=>4,name=>'user4')<br />
);<br />

我要比较这两个数组并将重复值查出来按照pid排序,然后把pid大的那个重复user1改成user3 

二维数组 php 排序
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