在多维数组中查找重复值 [英] Finding Duplicate Values in Multi-dimensional Array

问题描述

我有一个看起来与此类似的数组：

I have an array that looks similar to this:

Array
(
    [0] => Array
        (
            [0] => Model2345
            [1] => John Doe
            [2] => SN1234
        )

    [1] => Array
        (
            [0] => Model2345
            [1] => John Doe
            [2] => SN3456
        )

    [2] => Array
        (
            [0] => Model1234
            [1] => Jane Doe
            [2] => SN3456
        )
)

我想要一种方法来检查php中的键[1]（John Doe / Jane Doe键）和[2]（SNxxxx键）的重复值，但忽略键[0]的重复值。

I want to have a way to check for duplicate values for keys [1] (the John Doe/Jane Doe key) and [2] (the SNxxxx key) in php, but ignore duplicates for key [0]. How can this be accomplished?

推荐答案

此问题已得到回答。以下是该问题的接受的答案中的代码。

This question has already been answered here. The following is the code from the accepted answer of that question.

它利用 array_intersect（）函数。

<?php
$array = array(array("test data","testing data"), array("new data","test data"), array("another data", "test data", "unique data"));
$result = array();

$first = $array[0];
for($i=1; $i<count($array); $i++)
{
    $result = array_intersect ($first, $array[$i]);
    $first = $result;
}
print_r($result);
?>

输出：

数组（[0] =>测试数据）

Array ( [0] => test data )

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