<?php
$arr = array('a' => 'a', 'b' => 'b', 'c' => 'c');
$oldKey = 'b';
$newKey = 'new';
array_splice($arr, 1, 1, array($newKey => $arr[$oldKey]));
var_dump($arr);
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- array(3) {
["a"]=>
string(1) "a"
[0]=>
string(1) "b"
["c"]=>
string(1) "c"
}
preferences:
293.68 ms | 406 KiB | 459 Q