yii系统路径笔记

1、源代码：

public function actionGetUrlList()
{
    echo "当前域名地址：".Yii::$app->request->hostInfo."<br>";
    echo "当前目录物理路径：".Yii::$app->basePath."<br>";  
    echo "当前项目路径：".dirname(Yii::$app->BasePath)."<br>";
    echo "当前Url: ".Yii::$app->request->url."<br>";
    echo "当前Home Url: ".Yii::$app->homeUrl."<br>";
    echo "当前return Url: ".Yii::$app->user->returnUrl."<br>";
    echo "获取当前模块ID方法：".Yii::$app->controller->module->id."<br>";
    echo "获取当前控制器的ID方法：".Yii::$app->controller->id."<br>";
    echo "获取当前action的ID方法：".Yii::$app->controller->action->id."<br>";
    echo "ip地址： ".Yii::$app->request->userIP."<br>";
}

2、访问路径 http://localhost/visualization/backend/web/index.php?r=site/get-url-list 显示如下： 

 

下面这些别名都是在Yii2里面系统定义的，可以直接拿来就用
 

• '@yii' =>
  •       '@yii/swiftmailer' => string 'C:\wamp\www\advanced\vendor/yiisoft/yii2-swiftmailer' (length=52)
  •       '@yii/gii' => string 'C:\wamp\www\advanced\vendor/yiisoft/yii2-gii' (length=44)
  •       '@yii/faker' => string 'C:\wamp\www\advanced\vendor/yiisoft/yii2-faker' (length=46)
  •       '@yii/debug' => string 'C:\wamp\www\advanced\vendor/yiisoft/yii2-debug' (length=46)
  •       '@yii/codeception' => string 'C:\wamp\www\advanced\vendor/yiisoft/yii2-codeception' (length=52)
  •       '@yii/bootstrap' => string 'C:\wamp\www\advanced\vendor/yiisoft/yii2-bootstrap' (length=50)
  •       '@yii' => string 'C:\wamp\www\advanced\vendor\yiisoft\yii2' (length=40)
•   '@app' => string 'C:\wamp\www\advanced\frontend' (length=29)
•   '@vendor' => string 'C:\wamp\www\advanced/vendor' (length=27)
•   '@bower' => string 'C:\wamp\www\advanced/vendor\bower' (length=33)
•   '@npm' => string 'C:\wamp\www\advanced/vendor\npm' (length=31)
•   '@runtime' => string 'C:\wamp\www\advanced\frontend\runtime' (length=37)
•   '@webroot' => string 'C:/wamp/www/advanced/frontend/web' (length=33)
•   '@web' => string '/advanced/frontend/web' (length=22)

其中最常用的别名有

• @app
• @vendor
• @runtime
• @webroot
• @web

而且可以看到除了@web别名是url外，其它的都是物理路径