Refine the InsertAt function in the following PHP code to insert data anywhere in the array $items

$items = [' Apple ', ' orange ', ' pear ', ' pineapple ', ' banana ', ' dragon Fruit '];

/*
$items the incoming array
$index the location to insert
$value the data to be inserted
*/
function InsertAt ($items, $index, $value) {

return $items;

}

$items =insertat ($items, 2, ' oranges '); When the execution is complete, the results are as follows
[' Apples ', ' oranges ', ' oranges ', ' pears ', ' pineapple ', ' Bananas ', ' dragon Fruit '];

Reply content:

$items = [' Apple ', ' orange ', ' pear ', ' pineapple ', ' banana ', ' dragon Fruit '];

/*
$items the incoming array
$index the location to insert
$value the data to be inserted
*/
function InsertAt ($items, $index, $value) {

return $items;

}

$items =insertat ($items, 2, ' oranges '); When the execution is complete, the results are as follows
[' Apples ', ' oranges ', ' oranges ', ' pears ', ' pineapple ', ' Bananas ', ' dragon Fruit '];

php
  
    string '苹果' (length=6)  1 => string '橘子' (length=6)  2 => string '橙子' (length=6)  3 => string '梨' (length=3)  4 => string '菠萝' (length=6)  5 => string '香蕉' (length=6)  6 => string '火龙果' (length=9) */

The Array_splice mentioned in song Xiao Bei is a native implementation of PHP. We must not make the wheel again.

Build one here, just for fun.

function insertAt($items, $value, $index=0) {    is_numeric($index) and    $items[($index-'0.1').'x'] = $value and    ksort($items);    return array_values($items);}

