ThinkPHP如何获取当前页面URL信息？

$request = Request::instance();

$request = request();

$request = Request::instance();
// 获取当前域名
echo &#39;domain: &#39; . $request->domain() . &#39;<br/>&#39;;
// 获取当前入口文件
echo &#39;file: &#39; . $request->baseFile() . &#39;<br/>&#39;;
// 获取当前URL地址 不含域名
echo &#39;url: &#39; . $request->url() . &#39;<br/>&#39;;
// 获取包含域名的完整URL地址
echo &#39;url with domain: &#39; . $request->url(true) . &#39;<br/>&#39;;
// 获取当前URL地址 不含QUERY_STRING
echo &#39;url without query: &#39; . $request->baseUrl() . &#39;<br/>&#39;;
// 获取URL访问的ROOT地址
echo &#39;root:&#39; . $request->root() . &#39;<br/>&#39;;
// 获取URL访问的ROOT地址
echo &#39;root with domain: &#39; . $request->root(true) . &#39;<br/>&#39;;
// 获取URL地址中的PATH_INFO信息
echo &#39;pathinfo: &#39; . $request->pathinfo() . &#39;<br/>&#39;;
// 获取URL地址中的PATH_INFO信息 不含后缀
echo &#39;pathinfo: &#39; . $request->path() . &#39;<br/>&#39;;
// 获取URL地址中的后缀信息
echo &#39;ext: &#39; . $request->ext() . &#39;<br/>&#39;;

domain: https://luweipai.cn
file: /index.php
url: /index/index/hello.html?name=luweipai
url with domain: https://luweipai.cn/index/index/hello.html?name=luweipai
url without query: /index/index/hello.html
root:
root with domain: http://luweipai.cn
pathinfo: index/index/hello.html
pathinfo: index/index/hello
ext: html