Modify array key

[rob51383]

How can you modify the key of an array?

$array = array(one => 1, two => 2);

$array[one] = "changeTheKeyNotTheValue";

array
{
[changeTheKeyNotTheValue] => 1
[two] => 2
}

Thanks.

 

[skiflyer]

swap and unset

$array = array('one' => 1, 'two' => 2);
$array['new'] = $array['one'];
unset($array['one']);

You can go ahead and just functionalize that as

function newKey(&$arr, $oldkey,$newkey)
{
  $arr[$newkey]=$arr[$oldkey];
  unset($arr['oldkey']);
 //Add your own error handling based on need
}

 

[skiflyer]

oh just for the record, that will actually give you

array
{
[two] => 2
[change TheKeyNotThevalue] => 1
}

so careful about any assumptions you may be making on array orderings.