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php三维数组去重示例详解 - 站长搜索
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php三维数组去重示例详解

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2014-12-19 00:45:04 转载来源: 网络整理/侵权必删

本文为大家讲解的是一个php三维数组去重示例详解,感兴趣的同学参考下. 假设叫数组 $my_array; // 新建一个空的数组. $tmp_array = array(); $new_array = array(); // 1. 循环出所有的行. ( $val 就是某个行) foreach($my_array as $k => $val){     $hash = md5(json_encode($val));     if (in_array($hash, $tmp_array)) {         echo('这个行已经有过了');     }else{         // 2. 在 foreach 循环的主体中, 把每行数组对象得hash 都赋值到那个临时数组中.  

本文为大家讲解的是一个php三维数组去重示例详解,感兴趣的同学参考下.

假设叫数组 $my_array;


// 新建一个空的数组.
$tmp_array = array();

$new_array = array();

// 1. 循环出所有的行. ( $val 就是某个行)
foreach($my_array as $k => $val){

    $hash = md5(json_encode($val));
    if (in_array($hash, $tmp_array)) {
        echo('这个行已经有过了');
    }else{
        // 2. 在 foreach 循环的主体中, 把每行数组对象得hash 都赋值到那个临时数组中.
        $tmp_array[] = $hash;
        $new_array[] = $val;
    }
}

print_r($new_array);


$new_array 即为筛选后无重复数据的数组。


标签: php 三维 数组 去重 示例 详解


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