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js和php獲取頁面的url資訊

複製程式碼
#測試網址:     http://localhost/blog/testurl.php?id=5

//獲取域名或主機地址
echo $_SERVER['HTTP_HOST']."<br>"; #localhost

//獲取網頁地址
echo $_SERVER['PHP_SELF']."<br>"; #/blog/testurl.php

//獲取網址引數
echo $_SERVER["QUERY_STRING"]."<br>"; #id=5

//獲取使用者代理
echo $_SERVER['HTTP_REFERER']."<br>";

//獲取完整的urlecho '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

//包含埠號的完整url
echo 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
#http://localhost:80/blog/testurl.php?id=5

//只取路徑
$url
='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"];
echo dirname($url);
#http://localhost/blog