PHP实现
测试网址: http://localhost/blog/testurl.php?id=5
//获取域名或主机地址
$_SERVER[‘HTTP_HOST’].”
输出 localhost
//获取网页地址
echo $_SERVER[‘PHP_SELF’].”
输出 /blog/testurl.php
//获取网址参数
echo $_SERVER[“QUERY_”].”
输出 id=5
//获取用户代理
echo $_SERVER[‘HTTP_REFERER’].”
//获取完整的url
echo ‘http://’.$_SERVER[‘HTTP_HOST’].$_SERVER[‘REQUEST_URI’];
echo ‘http://’.$_SERVER[‘HTTP_HOST’].$_SERVER[‘PHP_SELF’].’?’.$_SERVER[‘QUERY_STRING’];
输出 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”];
输出 http://localhost:80/blog/testurl.php?id=5
//只取路径
$url=’http://’.$_SERVER[‘SERVER_NAME’].$_SERVER[“REQUEST_URI”];
echo ($url);
输出 http://localhost/blog
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