2013-04-16 168 views
22

說有人進入以下網址:獲取域名

http://i.imgur.com/a/b/c?query=value&query2=value 

而且我想返回:imgur.com

i.imgur.com

這是代碼,我現在所擁有的

$sourceUrl = parse_url($url); 
$sourceUrl = $sourceUrl['host']; 

但這返回i.imgur.com

+0

保健佳品?? – ramo

+0

如何啓動「這是獲取域的真實名稱的方法。」 – 2013-04-16 01:13:28

+0

見:http://stackoverflow.com/questions/288810/get-the-subdomain-from-a-url – duskwuff

回答

61

檢查下面的代碼,它應該做的工作的罰款。

<?php 

function get_domain($url) 
{ 
    $pieces = parse_url($url); 
    $domain = isset($pieces['host']) ? $pieces['host'] : $pieces['path']; 
    if (preg_match('/(?P<domain>[a-z0-9][a-z0-9\-]{1,63}\.[a-z\.]{2,6})$/i', $domain, $regs)) { 
    return $regs['domain']; 
    } 
    return false; 
} 

print get_domain("http://mail.somedomain.co.uk"); // outputs 'somedomain.co.uk' 

?> 
+0

這很好用!謝謝!我會將此標記爲最佳答案。 – ramo

+3

這是一個*小*棘手。它最終會返回第一級ccTLD的子域名的錯誤結果,例如'blah.blah.de'。但是,如果不使用公共後綴列表,則沒有辦法。 – duskwuff

+0

這不適用於'www.domain.com' - parse_url()需要一個協議(http://)來定義一個主機,否則它只是路徑。需要第一個條件:'$ domain =(empty($ domain)&& isset($ pieces ['path']))? $ pieces ['path']:$ domain;' –

-1
 if(substr_count($original_url, 'http://')) { 
    if(substr_count($original_url, 'www.')) { 
     // url style would be 'http://www.abc.xxx/page?param' or http://www.abc.xxx.xx/page?param 
     // extract 'abc' 
     $temp = explode('.', $original_url); 

     $store_url = $temp[1]; 
     // now 
     // $temp[2] = xxx or xxx/page?param 
     // $temp[3] = null or xx/page?param 

     //if ($temp[3] == null) { // then we are sure that $temp[2]== "xxx/page?param" 
        if(sizeof($temp) > 3) { 
      // extract "xxx" from "xxx/page?param" and append to store url so it will be "abc.xxx" 
      $temp = explode('/',$temp[2]); 
      $store_url .= '.'.$temp[0]; 
     } 
     else { 
      // then we are sure that $temp[2]== "xxx" and then $temp[3] == "xx/page?param" 
      //     or $temp[2]== xxx/page?stripped-link from second dot(.) 
      if(substr_count($temp[2], '/')) { // in case $temp[2]== xxx/page?stripped-link from second dot(.) 
       // extract "xxx" from "xxx/page?stripped-link" and appent to store url so it will be "abc.xxx" 
       $temp = explode('/',$temp[2]); 
       $store_url .= '.'.$temp[0]; // "abc".="xxx" ==> abc.xxx 
      } 
      else { // in case $temp[2]== "xxx" and then $temp[3] == "xx/page?param" 
       $store_url .= '.'.$temp[2]; // "abc".="xxx" ==> abc.xxx 
       // extract "xx" from "xx/page?param" and appent to store url so it will be "abc.xxx.xx" 
       $temp = explode('/',$temp[3]); 
       if(strlen($temp[0])==2) { 
        $store_url .= '.'.$temp[0]; 
       } 
      } 
     } 
    } 
    else { 
     // url style would be 'http://abc.xxx/page?param' or 'http://abc.xxx.xx/page?param' 
     // remove 'http://' 
     $temp = substr($original_url, 7); 
     // now temp would be either 'abc.xxx/page?param' or 'abc.xxx.xx/page?param' 
     // explode with '/' 
     $temp = explode('/', $temp); 
     $store_url = $temp[0]; 
    } 
} 
else if(substr_count($original_url, 'www.')) { 
    // url style would be 'www.abc.xxx/page?param' or 'www.abc.xxx.xx/page?param' 
    // remove 'www.' 
    $temp = substr($original_url, 4); 
    // now, $temp would be either "abc.xxx/page?param" or "abc.xxx.xx/page?param" 
    // explode with '/' 
    $temp = explode('/', $temp); 
    $store_url = $temp[0]; 
} 
else { 
    // url style would be 'abc.xxx/page?param' or 'abc.xxx.xx/page?param' 
    //explode with '/' 
    $temp = explode('/', $original_url); 
    $store_url = $temp[0]; 
} 
+0

嗯......那是什麼? –

+0

它是從url獲取主機名的功能。原始網址是您的網址和$ store_url返回主機網址.. –

-6

使用本:

$uri = "$_SERVER[REQUEST_URI]";<br> 
print($uri); 

例子:

http://exemple.com/?directory<br> 
Result: 
/?diretory 

的命令,在目錄中,而不是域名。

+0

該問題涉及用戶輸入的網址,而不是他們訪問的地址。 – robmcvey

-5

如果你只想要的域名,請嘗試以下操作:

$domain = $_SERVER['SERVER_NAME']; 

echo $domain; 
5

需要,使用Public Suffix List包。是的,你可以使用字符串函數arround parse_url()或regex,但是它們會在複雜的URL中產生不正確的結果。

我的域名解析建議更換TLDExtract,這裏是示例代碼:

$url = 'http://i.imgur.com/a/b/c?query=value&query2=value'; 

parse_url($url, PHP_URL_HOST); // will return 'i.imgur.com' 

$extract = new LayerShifter\TLDExtract\Extract(); 
$result = $extract->parse($url); 
$result->getFullHost(); // will return 'i.imgur.com' 
$result->getSubdomain(); // will return 'i' 
$result->getRegistrableDomain(); // will return 'imgur.com' 
$result->getSuffix(); // will return 'com' 
1

我一直在使用publicsuffix.org找到了一個非常有用的庫, PHP Domain Parser是PHP實現基於公共後綴列表域解析器。

https://github.com/jeremykendall/php-domain-parser

<?php 
// this will do the job 

require_once '../vendor/autoload.php'; 

$pslManager = new Pdp\PublicSuffixListManager(); 
$parser = new Pdp\Parser($pslManager->getList()); 
var_dump($parser->getRegistrableDomain('www.scottwills.co.uk')); 
?> 

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