如何在PHP中移除结果数组的0索引键？

原始数组 #

Array
(
    [0] => Array
        (
            [1] => Array
                (
                    [aid] => 1
                    [address] => Surat
                    [country] => India
                    [state] => Gujarat
                    [city] => Surat
                    [pincode] => 395010
                    [full_name] => Pra test
                    [mobile_no] => 7984509142
                    [email] => 
                    [default] => 0
                )

        )

)

目标数组 #

Array
(
     [1] => Array
         (
             [aid] => 1
             [address] => Surat
             [country] => India
             [state] => Gujarat
             [city] => Surat
             [pincode] => 395010
             [full_name] => Pra test
             [mobile_no] => 7984509142
             [email] => 
             [default] => 0
         )
)

以下是几种实现方法：

• 直接索引访问：最简单的方式，直接取外层数组的0索引值

  $newArray = $originalArray[0];
  

• array_shift()函数：移除数组的第一个元素并返回该元素，刚好对应外层的0索引数组

  $newArray = array_shift($originalArray);
  

• reset()函数：将数组内部指针指向第一个元素，并返回该元素的值

  $newArray = reset($originalArray);
  

• array_merge()结合展开运算符：通过展开外层数组，合并后得到目标结构

  $newArray = array_merge(...$originalArray);
  

内容的提问来源于stack exchange，提问作者yash patel