将键相同的多个数组的值连接到一个巨型数组中

Question

我有3个不同的数组，具有一个常量(但未知)的项目数。

$array1 = array("orange", "banana", "plum");
$array2 = array("apple", "raspberry", "pineapple");
$array3 = array("kiwi", "tomato", "lemon");

我想将键相同的每个数组的值加入到一个巨大的数组中。下面是我要创建的数组。

$desired_array = array("orange,apple,kiwi", "banana,raspberry,tomato", "plum,pineapple,lemon");

我甚至不太清楚该怎么处理。我试过了

foreach ($array1 as $arr1) {
    foreach ($array2 as $arr2) {
        foreach ($array3 as $arr3) {
            $arr .= $arr1 . "," . $arr2 . "," . $arr3 ."\n";
        }
    }
}

但那又回来了

orange,apple,kiwi
orange,apple,tomato
orange,apple,lemon
orange,raspberry,kiwi
orange,raspberry,tomato
orange,raspberry,lemon
orange,pineapple,kiwi
orange,pineapple,tomato
orange,pineapple,lemon
banana,apple,kiwi
banana,apple,tomato
banana,apple,lemon
banana,raspberry,kiwi
banana,raspberry,tomato
banana,raspberry,lemon
banana,pineapple,kiwi
banana,pineapple,tomato
banana,pineapple,lemon
plum,apple,kiwi
plum,apple,tomato
plum,apple,lemon
plum,raspberry,kiwi
plum,raspberry,tomato
plum,raspberry,lemon
plum,pineapple,kiwi
plum,pineapple,tomato
plum,pineapple,lemon

Answer 1

如果数组的长度总是相同的，那么试试这个解决方案，。

<?php

   $array1 = array("orange", "banana", "plum");
   $array2 = array("apple", "raspberry", "pineapple");
   $array3 = array("kiwi", "tomato", "lemon");

   $arr=array();
   for($l=0;$l<count($array1);$l++)
   {
       $arr[$l]=$array1[$l].",".$array2[$l].",".$array3[$l];
   }

   print_r($arr);
   /*o/p:Array ( [0] => orange,apple,kiwi [1] => banana,raspberry,tomato [2] => plum,pineapple,lemon )*/

?>

编辑：

如果您需要它，在中为每个循环

<?php

    $array1 = array("orange", "banana", "plum");
    $array2 = array("apple", "raspberry", "pineapple");
    $array3 = array("kiwi", "tomato", "lemon");

    $arr2=array();
    foreach($array1 as $key=>$value) 
    {
        $arr2[$key]=$array1[$key].",".$array2[$key].",".$array3[$key];
    }

    print_r($arr2);
?>