PHP中获取当前页面的完整URL
测试网址: http://localhost/blog/testurl.php?id=5
获取域名或主机地址----localhost
echo $_SERVER['HTTP_HOST']."<br>";
获取网页地址----/blog/testurl.php
echo $_SERVER['PHP_SELF']."<br>";
获取网址参数----id=5
echo $_SERVER["QUERY_STRING"]."<br>";
获取用户代理
echo $_SERVER['HTTP_REFERER']."<br>";
获取完整的url----http://localhost/blog/testurl.php?id=5
echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']; echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING'];
包含端口号的完整url----http://localhost:80/blog/testurl.php?id=5
echo 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
只取路径----http://localhost/blog
$url='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]; echo dirname($url);