<div class="codebody" id="code62881">
/*
Normalizes the input parameter to be a valid URL.

If the input parameter is an empty string,the currently requested URL will be returned.

If the input parameter is a non-empty string,it is treated as a valid URL and will
be returned without any change.

If the input parameter is an array,it is treated as a controller route and a list of
GET parameters,and the {@link CController::createUrl} method will be invoked to
create a URL. In this case,the first array element refers to the controller route,
and the rest key-value pairs refer to the additional GET parameters for the URL.
For example,array('post/list','page'=>3) may be used to generate the URL
/index.PHP?r=post/list&page=3.

@param mixed $url the parameter to be used to generate a valid URL
@return string the normalized URL
/
public static function normalizeUrl($url)
{
if(is_array($url))
{
if(isset($url[0]))
{
if(($c=Yii::app()->getController())!==null)
$url=$c->createUrl($url[0],array_splice($url,1));
else
$url=Yii::app()->createUrl($url[0],1));
}
else
$url='';
}
return $url==='' ? Yii::app()->getRequest()->getUrl() : $url;
}