独特的多维数组基于价值（而不是数组键） [英] Multidimensional array unique based on value (not array key)

问题描述

我有一个多维数组，我需要与独特性进行排序，因为我有重复的记录，所以我需要 array_unique 来访问数组和值删除重复值，如：

 阵列
（
    [0] =＆GT;排列
        （
            [ID] =＆GT; 324
            [TIME_START] =＆GT; 1301612580
            [等级] =＆GT; 0.002
            [input_level] =＆GT; 0.002
        ）    [1] =＆GT;排列
        （
            [ID] =＆GT; 325
            [TIME_START] =＆GT; 1301612580
            [等级] =＆GT; 0.002
            [input_level] =＆GT; 0.002
        ）    [2] =＆GT;排列
        （
            [ID] =＆GT; 326
            [TIME_START] =＆GT; 1301612580
            [等级] =＆GT; 0.002
            [input_level] =＆GT; 0.002
        ）
）
 

有重复 TIME_START ，他们都是一样的，也级别和 input_level ，但他们都没有受到影响，只是如果有匹配 TIME_START 应该删除它，并处理整个阵列的（数组比你想象的大，但我只是贴数组的一个小例子）的。应该删除愚弄和返回是这样的：

 阵列
（
    [0] =＆GT;排列
        （
            [ID] =＆GT; 324
            [TIME_START] =＆GT; 1301612580
            [等级] =＆GT; 0.002
            [input_level] =＆GT; 0.002
        ）
）
 

问题我发现，没有工作：

• reformat基于价值的多维数组


• Delete基于价值的多维数组元素

解决方案

  $输入=阵列（/ *数据* /）;
$ TEMP =阵列（）;
$键=阵列（）;的foreach（$输入为$关键=＆GT; $数据）{
    未设置（$数据['身份证']）;
    如果（！in_array（$数据，$温度））{
        $温度[] = $的数据;
        $键[$关键] =真;
    }
}$输出= array_intersect_key（$投入，$键）;
 

或

  $输入=阵列（/ *数据* /）;
$ TEMP = $输入;的foreach（$温度为＆放大器; $数据）{
    未设置（$数据['身份证']）;
}$输出= array_intersect_key（$输入，array_unique（$ TEMP））;
 

I have a multidimensional array which I need to be sorted with uniqueness as I have duplicated records, so I need array_unique to go through the array and remove duplicates by the value, e.g.

Array
(
    [0] => Array
        (
            [id] => 324
            [time_start] => 1301612580
            [level] => 0.002
            [input_level] => 0.002
        )

    [1] => Array
        (
            [id] => 325
            [time_start] => 1301612580
            [level] => 0.002
            [input_level] => 0.002
        )

    [2] => Array
        (
            [id] => 326
            [time_start] => 1301612580
            [level] => 0.002
            [input_level] => 0.002
        )
)

There are duplicated time_start, which they are all the same, also level and input_level but they are not to be affected, only if there are matching time_start it should remove it and process the whole array (the array is bigger than you think, but I just posted a small example of the array). Should remove dupes and return like this:

Array
(
    [0] => Array
        (
            [id] => 324
            [time_start] => 1301612580
            [level] => 0.002
            [input_level] => 0.002
        )
)

Questions I've found that didn't work:

• reformat multidimensional array based on value
• Delete element from multidimensional-array based on value

解决方案

$input = array( /* your data */ );
$temp  = array();
$keys  = array();

foreach ( $input as $key => $data ) {
    unset($data['id']);
    if ( !in_array($data, $temp) ) {
        $temp[]     = $data;
        $keys[$key] = true;
    }
}

$output = array_intersect_key($input, $keys);

or

$input = array( /* your data */ );
$temp  = $input;

foreach ( $temp as &$data ) {
    unset($data['id']);
}

$output = array_intersect_key($input, array_unique($temp));

这篇关于独特的多维数组基于价值（而不是数组键）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！