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Use PHP regular expressions to get the domain name in the URL. Here are two small examples. They are simple and practical. Friends in need, come and take a look.
URL A Universal Resource Identifier (Uniform Resource Identifier, referred to as "URI") for positioning. Object grouping: ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(?([^#]*))?(# (.*))? 12 3 4 5 6 7 8 9 Example 1,
<?php
$search = '~^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?~i';
$url = 'http://bbs.it-home.org/pub/ietf/uri/#Gonn';
$url = trim($url);
preg_match_all($search, $url ,$rr);
printf("<p>输出URL数据为：</p><pre class="brush:php;toolbar:false">%sCopy after login The above regular expression can obtain any part of the URL. The code below is more concise and easier to understand.
<?php
// 从 URL 中取得主机名
preg_match("/^(http://)?([^/]+)/i", "http://bbs.it-home.org/index.html", $matches);
$host = $matches[2];
// 从主机名中取得后面两段
preg_match("/[^./]+.[^./]+$/", $host, $matches);
echo "domain name is: {$matches[0]}n";
?>Copy after login |
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