ApiHelper::changeArrayMainKey

static function changeArrayMainKey($data = array(), $mainKey, $keyRename = '')
{
	if (!isset($mainKey))
		return $data;
	
	$result = array();
	foreach ($data as $item)
	{
		$result[$item[$mainKey]] = $item;
		if ($keyRename)
		{
			$result[$item[$mainKey]][$keyRename] = $result[$item[$mainKey]][$mainKey];
			unset($result[$item[$mainKey]][$mainKey]);
		}
	}
	
	return $result;
}