Question

你好，我有一把钥匙=＆gt;值数组。键是数字索引，值是关联数组。我想在特定位置添加新元素，并希望提前移动现有元素。我的数组看起来像

Array
(
 [0] => Array
    (
        [States ] => States
        [Call Count] => Call Count
        [Leads] => Leads
    )

 [1] => Array
    (
        [States] => AK
        [Call Count] => 0
        [Leads] => 
    )

 [2] => Array
    (
        [States] => AL
        [Call Count] => 0
        [Leads] => 
    )

 [3] => Array
    (
        [States] => AR
        [Call Count] => 0
        [Leads] => 
    )
)

现在我要插入一个像2=>array('States'=>'ABC','Call Count' =>5, 'Leads'=>2)这样的索引，并希望索引2变成3和3变为4 .....当我使用时

 array_slice($outboundSummaryData, 0, 2, true) +
            array('States ' => 'States', 'Call Count' => 'Call Count', 'Leads' => 'Leads') +
            array_slice($outboundSummaryData, 2, count($outboundSummaryData) - 2, true);

它会覆盖我的2索引。

当我使用

时

array_splice($outboundSummaryData, 2, 0, array('States ' => 'States', 'Call Count' => 'Call Count', 'Leads' => 'Leads'));

它将我的新数组元素作为数组的主索引插入。

任何帮助？

Answer 1

我使用了array_splice。并且您的数据结构可以保持不变

$test = array(
    array('apple', 'juice'),
    array('ice', 'cream'),
    array('tea', 'pot'),
);

var_dump($test);

array_splice($test, 2, 0, array(2 => array('coffee', 'milk')));

var_dump($test);

非常简单。添加的数组也需要新索引

Answer 2

$new_array = array_merge( 
   array_slice($outboundSummaryData, 0, 2, true),
   array( 
          array(
                'States' => 'States',
                'Call Count' => 'Call Count', 
                'Leads' => 'Leads'
               ) 
        ),
   array_slice($outboundSummaryData, 2, count($outboundSummaryData) - 2, true)
);

结果：

Array
(
    [0] => 0
    [1] => 1
    [2] => Array
        (
            [States] => States
            [Call Count] => Call Count
            [Leads] => Leads
        )

    [3] => 2
    [4] => 3
)

Answer 3

嗯..你总是可以使用拼接并附加......

$arr = [0=>"a",1=>"b",2=>"c"];
$splice_value = 2;
$spliced_arr = array_splice($arr, $splice_value);
for($i=$splice_value; $i < count($arr); $i++)
{
   $spliced_arr[] = $arr[$i];
}

Answer 4

如果您不介意从关联数组更改为列表

$outboundSummaryData = array_splice(
     array_values($outboundSummaryData), 
     2, 0, array('States ' => 'States', 'Call Count' => 'Call Count', 'Leads' => 'Leads')
);

在特定位置添加元素并移动现有元素

4 个答案: