Yii::getPathOfAlias('zii') 
Yii::import ('zii.*')  
Yii::setPathOfAlias('backend', $backend); 
'import' => array( 
'backend.models.*',  

Yii::getFrameworkPath() 
{full URL}

http://localhost/yii_lab/index.php"htmlcode">

Yii::import('application.venders.*');  



或在protected/config/main.php说明：


'import'=>array(  
    ......  
    'application.venders.*',  
  ), 




插入meta信息：


Yii::app()->clientScript->registerMetaTag('keywords','关键字'); 
Yii::app()->clientScript->registerMetaTag('description','一些描述'); 
Yii::app()->clientScript->registerMetaTag('author','作者'); 
<link rel="alternate" type="application/rss+xml" href="https://www.jb51.net/" />
Yii::app()->clientScript->registerLinkTag('alternate','application/rss+xml',$this->createUrl('/feed')); 




在控制器添加CSS文件或JavaScript文件：


Yii::app()->clientScript->registerCssFile(Yii::app()->baseUrl.'/css/my.css'); 
Yii::app()->clientScript->registerScriptFile(Yii::app()->baseUrl.'/css/my.js'); 
<"htmlcode">

Yii::app()->clientScript->registerCoreScript('jquery'); 




在view中得到当前controller的ID方法：


Yii::app()->getController()->id;  




在view中得到当前action的ID方法：


Yii::app()->getController()->getAction()->id;  




yii获取ip地址


Yii::app()->request->userHostAddress; 




yii判断提交方式


Yii::app()->request->isPostRequest  




得到当前域名:


Yii::app()->request->hostInfo 




得到proteced目录的物理路径


YII::app()->basePath; 




获得上一页的url以返回


Yii::app()->request->urlReferrer; 




得到当前url


Yii::app()->request->url; 




得到当前home url


Yii::app()->homeUrl 




得到当前return url


Yii::app()->user->returnUrl 




项目路径


dirname(Yii::app()->BasePath) 




如果你自己有个目录下有些类或文件常用，可以在main.php的最上边定义一个路径别名,别名可以被翻译为其相应的路径。


Yii::getPathOfAlias('webroot')  




如果是多个可以在main.php中的array中加一个配置


'aliases'=>array( 
'local'=>'path/to/local/' 
), 
<?php echo $this->getLayoutFile('main'); ?>
$this->redirect('index.php?r=admin/manage');
{createUrl()}
echo $this->createUrl('urlBoyLeeTest'); 
//out => /yii_lab/index.php?r=lab/urlBoyLeeTest 
$this->createUrl('post/read') // /index.php/post/read 
<?php echo Yii::app()->request->baseUrl; ?>/css/screen.css 
Yii::app()->theme->baseUrl.'/images/FileName.gif'  
{createAbsoluteUrl()}
echo $this->createAbsoluteUrl('urlBoyLeeTest'); 
//out => http://localhost/yii_lab/index.php?r=lab/urlBoyLeeTest