I had a need tonight to replace the keys in an array in PHP. I couldn't find a good solution on any mailing lists or other sites, so I thought I'd share the class that I came up with, and it's test.
First up, the test:
<?php
require_once 'PHPUnit/Framework.php';
require_once 'ArrayHelper.class.php';
class ArrayHelperTest
extends PHPUnit_Framework_TestCase
{
public function testRenameKeys
()
{
$keys =
array('newkey1',
'newkey2',
'newkey3');
$array =
array('oldkey1' =>
'value1',
'oldkey2' =>
'value2',
'oldkey3' =>
'value3');
ArrayHelper::
renameKeys($array,
$keys);
$this->
assertArrayHasKey($keys[0],
$array);
$this->
assertArrayHasKey($keys[1],
$array);
$this->
assertArrayHasKey($keys[2],
$array);
$this->
assertEquals(3,
count($array));
}
} Next, the class itself, after the jump.
