| <div class="codetitle"><a style="CURSOR: pointer" data="93194" class="copybut" id="copybut93194" onclick="doCopy('code93194')"> 代码如下:<div class="codebody" id="code93194"> <?php echo CHtml::link('错误链接','user/register')?>
 <?php echo CHtml::link('正确链接',array('user/register'))?>
 
 假定设定了UrlManager的配置为Path模式,用yii默认的配置:
 <div class="codetitle"><a style="CURSOR: pointer" data="84908" class="copybut" id="copybut84908" onclick="doCopy('code84908')"> 代码如下:<div class="codebody" id="code84908">
 'urlManager'=>array(
 'urlFormat'=>'path',
 'rules'=>array(
 '<controller:w+>/<id:d+>'=>'/view',
 '<controller:w+>/<action:w+>/<id:d+>'=>'/',
 '<controller:w+>/<action:w+>'=>'/',
 ),
 
 上面两行代码会生产什么样的链接地址?
 http:///user/register //错误链接
 http:///index.php/user/register //正确链接
 第一个链接是错误的,浏览器会返回404错误。第二个链接会访问UserController的Register方法。区别就在于第二个链接在生成的时候我们传入的参数是一个array数组,而第一个方法是一个简单字符串。Yii在处理Url的时候,遇到简单字符串会直接使用该字符串作为最终的Url,而当遇到数组的时候会调用Controller的CreateUrl来生成Url.
 说到简单字符串,这两个链接中其实有一个非常本质的区别。虽然同样都是字符串'user/register',但是在第一个字符串中就代表一个13个字符的相对路径,而第二个链接中则代表UserController的registerAction,是有着特俗意义的。
 附上Yii处理Url的方法NormalizeUrl的源代码:
 <div class="codetitle"><a style="CURSOR: pointer" data="62881" class="copybut" id="copybut62881" onclick="doCopy('code62881')"> 代码如下:<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;
 }
 
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