如何从数组中删除元素并插入PHP中的其他位置？

Question

例如,假设我有

$input = array(0, 1, 2, 3, 4, 5, 6, 7);

如何删除元素5并插入位置2,留下我

0,1,5,2,3,4,6,7

Answer 1

$input = array(0, 1, 2, 3, 4, 5, 6, 7);
array_splice($input, 2, 0, array($input[5])); //Place the a new array in the 3rd place of array
unset($input[6]); //remove the fifth element
array_splice($input, 0, 0); //to update the indexes

echo "<pre>".print_r($input,1)."</pre>"; //to view the array

方法无需取消设置和重新排列索引

$input = array(0, 1, 2, 3, 4, 5, 6, 7);
array_splice($input, 2, 0, array_splice($input,5,1)); 

产量

Array
(
    [0] => 0
    [1] => 1
    [2] => 5
    [3] => 2
    [4] => 4
    [5] => 5
    [6] => 6
    [7] => 7
)