PHP比较二维数组 [英] PHP compare two dimension array

问题描述

我想知道如何比较两个二维数组值。

第一阵列

 阵列1
（
    [0] =＆GT;排列
        （
            [0] =＆GT;一个
        ）    [1] =＆GT;排列
        （
            [0] =＆GT; b
        ）    [2] =＆GT;排列
        （
            [0] =＆GT; C
        ）}
 

第二个

 阵列2
（
    [0] =＆GT;排列
        （
            [0] =＆GT;一个
        ）    [1] =＆GT;排列
        （
            [0] =＆GT; ð
        ）    [2] =＆GT;排列
        （
            [0] =＆GT; Ë
        ）}
 

我需要让我的循环比较阵列和检查匹配的值。就我而言，数组1 [0] [0] =一个比赛ARRAY2 [0] [0] =一个。如果匹配，PHP将输出一些HTML。

我的f​​oreach循环

 的foreach（$数组1为$数组）{
    的foreach（$数组作为$数组）{
      //这里需要比较数组2不知道该怎么做。
    }
}
 

解决方案

 的foreach（$数组1为$ K1 =＆GT; $阵列）{
    的foreach（$数组作为$ K2 =＆GT; $ VAL）{      如果（$数组2 [$ K1] [$ K2] == $ VAL）{
          // $ ARRAY1 [$ K1] [$ K2]等于$数组2 [$ K1] [$ K2]
      }
}
 

的的foreach（$ A为$ K =＆GT; $ V）语法做同样的事情为的foreach（$ A为$ V） ，但它也让与值相关联的钥匙插入 $氏/ code>。

I would like to know how to compare two two-dimension arrays value.

First array

Array 1
(
    [0] => Array
        (
            [0] => a
        )

    [1] => Array
        (
            [0] => b
        )

    [2] => Array
        (
            [0] => c
        )

}

Second one

Array 2
(
    [0] => Array
        (
            [0] => a
        )

    [1] => Array
        (
            [0] => d
        )

    [2] => Array
        (
            [0] => e
        )

}

I need to make my loop to compare the arrays and check the matched value. In my case, array1[0][0]=a matches array2[0][0]=a. If it matches, php will output some html.

My foreach loop

foreach ($array1 as $arrays){
    foreach($arrays as $array){
      //need to compare array2 here not sure how to do it.
    }
}

解决方案

foreach($array1 as $k1 => $arrays) {
    foreach($arrays as $k2 => $val) {

      if($array2[$k1][$k2] == $val) {
          // $array1[$k1][$k2] is equal to $array2[$k1][$k2]
      }
}

The foreach($a as $k => $v) syntax does the same thing as foreach($a as $v), except that it also puts the key associated with the value into $k.

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