如何在php中设置取消设置后的值 - How To Set The value after Unset in php

How To Set The value after Unset in php

本文关键字：设置取消 php | 更新日期: 2023-09-27

我需要什么

i首先取消设置数组值后，需要保留这些值

以下是阵列结构（未设置之前）

    [0] => Array
    (
        [currency] => INR
    )
   [1] => Array
    (
        [type] => General Public Tickets  Adult
        [amount] => 50
        [comment] => (Working Days)
    )
   [2] => Array
    (
        [type] => General Public Tickets  Adult
        [amount] => 80
        [comment] => (Saturday/ Sunday/ Holiday)
    )

以下是阵列结构（取消设置后）

    [1] => Array
    (
        [type] => General Public Tickets  Adult
        [amount] => 50
        [comment] => (Working Days)
    )
   [2] => Array
    (
        [type] => General Public Tickets  Adult
        [amount] => 80
        [comment] => (Saturday/ Sunday/ Holiday)
    )

这是php代码

                   unset($data[0]);
                 /* code to set the value after unset */
                   $data= array_values($data[0]);

i需要将货币放入另一个数组
首先，我从数组中取消设置数组值[货币]
然后我想把[货币]放在另一个数组中
从数组中取消设置后，如何设置值

//save element to a new variable
$temp = $data[0];
//unset element
unset($data[0]);
/* code to set the value after unset */
//add element back to the array
$data[0] = $temp;
        OR
//To add elements to the beginning of an array, use array_unshift
array_unshift($data,$temp);

在新数组中取消设置货币值之前，需要先获取货币值。如果您取消设置，然后尝试访问它，则会导致未定义

尝试如下：

             $arrNew = $data[0];  //save it new array
              unset($data[0]); //unset it now