php删除数值中重复value，只留其一

最新推荐文章于 2021-03-19 17:52:45 发布

lf747784476

最新推荐文章于 2021-03-19 17:52:45 发布

阅读量1.2k

点赞数

CC 4.0 BY-SA版权

文章标签： php 数组

本文链接：https://blog.youkuaiyun.com/lf747784476/article/details/46914599

本文展示了一个PHP脚本示例，该脚本通过遍历数组并比较元素来去除重复项。具体做法是：首先定义一个多维数组，然后使用两层循环结构检查每个元素是否与后续元素重复，如果发现重复，则利用unset()函数移除重复项。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

<?php
$arr=array(
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd"),
array("cc"=>"ss","dd"=>"asdasd"),
array("cc"=>"cxx","dd"=>"asdasd")
);
$count=count($arr);
for($i=0;$i<$count;$i++){
for ($j=$i+1;$j<$count;$j++){
if($arr[$i]['cc']==$arr[$j]['cc']){
unset($arr[$j]);
}
}
}
print_r($arr);