PHP 获取当前页面的URL信息
//获取当前的域名: echo $_SERVER['SERVER_NAME']; //获取来源网址,即点击来到本页的上页网址 echo $_SERVER["HTTP_REFERER"]; $_SERVER['REQUEST_URI'];//获取当前域名的后缀 $_SERVER['HTTP_HOST'];//获取当前域名 dirname(__FILE__);//获取当前文件的物理路径 dirname(__FILE__)."/../";//获取当前文件的上一级物理路径
#测试网址: https://127.0.0.1/blog/testurl.php?id=5 //获取域名或主机地址 echo $_SERVER['HTTP_HOST']."<br>"; #localhost //获取网页地址 echo $_SERVER['PHP_SELF']."<br>"; #/blog/testurl.php //获取网址参数 echo $_SERVER["QUERY_STRING"]."<br>"; #id=5 //获取用户代理 echo $_SERVER['HTTP_REFERER']."<br>"; //获取完整的url echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']; echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING']; #http://localhost/blog/testurl.php?id=5 //包含端口号的完整url echo 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; #http://localhost:80/blog/testurl.php?id=5 //只取路径 $url='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]; echo dirname($url); #http://localhost/blog