Question

我有以下数组：

Array
(
    [0] => Array
        (
            [id] => 23
            [title] => jkl
        )

    [1] => Array
        (
            [id] => 478
            [title] => lmn
        )

    [2] => Array
        (
            [id] => 22
            [title] => pqr
        )

    [3] => Array
        (
            [id] => 21
            [title] => abc
        )
)

同样是第二阵列：

Array
(
    [0] => Array
        (
            [id] => 103
            [title] => Activities
        )

    [1] => Array
        (
            [id] => 76
            [title] => Top 10 Ideas
        )

    [2] => Array
        (
            [id] => 9
            [title] => Best Shopping Areas
        )    
)

如果第一个数组的计数小于3，我想将第一个数组附加到第二个数组中，所以我使用了数组推送功能，并且这样做：

if (count($secondArr) < 3) {
            echo "<pre>";
            echo array_push($secondArr, $firstArr);
            print_r($result);
            exit;
        }

现在在array_push之后它显示了这样的数组（多维）

Array
(
    [0] => Array
        (
            [id] => 76
            [title] => Activities
        )

    [1] => Array
        (
            [id] => 103
            [title] => Top 10 Ideas
        )

    [2] => Array
        (
            [id] => 9
            [title] => Best Shopping Areas
        )

    [3] => Array
        (
            [0] => Array
                (
                    [id] => 23
                    [title] => jkl
                )

            [1] => Array
                (
                    [id] => 478
                    [title] => lmn
                )

            [2] => Array
                (
                    [id] => 22
                    [title] => pqr
                )

            [3] => Array
                (
                    [id] => 21
                    [title] => abc
                )   

        )

)

我不想这样（多维）。我想用键4,5附加等等。如果是，那么可以吗？

感谢。

Answer 1

您应该使用array_merge代替。

$result = array_merge($secondArr, $firstArr);

Answer 2

array_push将一个新元素插入到数组中。您想合并两个数组：

$firstArray = array_merge($firstArray, $secondArray);

Answer 3

根据PHP.net specification for array_push:

array_push() treats array as a stack, and pushes the passed variables onto the end of array. The length of array increases by the number of variables pushed. Has the same effect as:

所以它不会起作用。您可能希望以完全相同的方式使用array_merge而不是array_push。

Answer 4

使用array_merge

http://in2.php.net/manual/en/function.array-merge.php

array_push - 将一个或多个元素推送到数组的末尾

http://au.php.net/manual/en/function.array-push.php

Answer 5

你可以这样做：

$array1 = array(array(1,2,3),array(1,2,3));
$array2 = array(array(4,5,6),array(4,5,6));

if(count($array2) > 3){
    foreach($array2 as $val){
            $array1[] = $val;
    }
}
print_r($array1);

或者你可以简单地合并：

$new_array = array_merge($array1 , $array2);

Answer 6

如果您仍然坚持使用数组推送，试试这个：

if (count($secondArr) < 3) {
    echo "<pre>";
    foreach($firstArr as $arr){
        array_push($secondArr,$arr);
    }
    print_r($secondArr);
    exit;
}

但我同意使用array_merge。

Answer 7

您可以使用array_merge

尝试以下代码

if (count($secondArr) < 3) {
            array_merge($secondArr, $firstArr);
        }

数组推送显示多维数组

7 个答案: