-
-
- $search = '~^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(?([^#]*))?(#(.*))?~i';
- $url = 'http://www.php.net/pub/ietf/uri/#Related';
- $url = trim($url);
- preg_match_all($search, $url ,$rr);
- printf("
输出URL数据为： %s n",var_export( $rr ,TRUE));
/* - 各分组如下
- = http:
- = http
- = //www.php.net
- = www.php.net
- = /pub/ietf/uri/
- =
- =
- = #Related
- = Related
- */
- ?>
-
这里提供另一个简洁的代码：
-
- // 从 URL 中取得主机名
- preg_match("/^(http://)?([^/]+)/i", "http：//www.php.net/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";
- ?>
执行后输出：domain name is: php.net
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