Question

首先，我为我的英语道歉...

我必须在所有子阵列的第一个位置的多维数组中插入一个元素。

$docNum = "RT/2013-2014/0266";
$values = 
Array
(
[0] => Array
    (
        [0] => 2014-08-07
        [1] => Dl-Dis1
        [2] => Discount
        [3] => 7.500
        [4] => 26.25
    )

[1] => Array
    (
        [0] => 2014-08-07
        [1] => Dl-Dis1
        [2] => Discount
        [3] => 7.500
        [4] => 24.38
    )

 )

这两个是输入..

我给予组合的代码是

array_unshift($values, $docNum);

，我的输出是

 Array
(
[0] => RT/2013-2014/0266
[1] => RT/2013-2014/0266
[2] => Array
    (
        [0] => 2014-08-07
        [1] => Dl-Dis1
        [2] => Discount
        [3] => 7.500
        [4] => 26.25
    )

[3] => Array
    (
        [0] => 2014-08-07
        [1] => Dl-Dis1
        [2] => Discount
        [3] => 7.500
        [4] => 24.38
    )

)

我想要的输出应该是

 Array
(


[0] => Array
    (
        [0] => RT/2013-2014/0266
        [1] => 2014-08-07
        [2] => Dl-Dis1
        [3] => Discount
        [4] => 7.500
        [5] => 26.25
    )

[1] => Array
    (
        [0] => RT/2013-2014/0266
        [1] => 2014-08-07
        [2] => Dl-Dis1
        [3] => Discount
        [4] => 7.500
        [5] => 24.38
    )

)

我希望你能理解我在问什么......

我也已经看到[link] :( stackoverflow.com/questions/15398678/array-unshift-for-multidimensional-arrays）

请不要标记为重复..

谢谢你提前......

Answer 1

你无法彻底解除它。这将在父数组上而不是子数组之前添加值。您可以先循环它，然后循环每个子数组，然后使用unshift。例如：

// generate the string with the value you'd unshift
$docNum = "RT/2013-2014/0266";

// build up your multidimensional array
$values = array(
    array('2014-08-07', 'Dl-Dis1', 'Discount', 7.500, 26.25),
    array('2014-08-07', 'Dl-Dis1', 'Discount', 7.500, 24.38),
);

// for every sub-array...
foreach($values as &$sub_array) { // & reference
    // ... unshift your value
    array_unshift($sub_array, $docNum);
}

echo '<pre>';
// check out the result
print_r($values);

输出如下：

Array
(
    [0] => Array
    (
        [0] => RT/2013-2014/0266
        [1] => 2014-08-07
        [2] => Dl-Dis1
        [3] => Discount
        [4] => 7.5
        [5] => 26.25
    )

    [1] => Array
    (
        [0] => RT/2013-2014/0266
        [1] => 2014-08-07
        [2] => Dl-Dis1
        [3] => Discount
        [4] => 7.5
        [5] => 24.38
    )
)

多维数组中的array_unshift插入所有数组中的第一个元素

1 个答案: