drupal6 中 (drupal7应该差不多,不完全一样)得到 当前 域名 get current domain 有大用

网址是  http://my.wangruoban.com/node/468022/

global $base_url; $base_url  此时 $base_url 等于  http://my.wangruoban.com

global $base_path; $base_path  此时 $base_url 等于  / 

$_SERVER['HTTP_HOST']    等于 my.wangruoban.com

$GLOBALS['base_url']   等于  http://my.wangruoban.com

global $base_path;

$base_url_parts = parse_url($base_url);

$host = $base_url_parts['host'];

var_dump($base_url_parts);
 //结果为
array(2) {    
["scheme"]=>    
string(4) "http"    
["host"]=>    
string(12) "w.wzfzxx.com"    
}   

var_dump($host);
 //结果为
string(12) "w.wzfzxx.com" 

global $base_url;   // Will point to http://www.example.com
global $base_path;  // Will point to at least "/" or the subdirectory where the drupal in installed.
$link = $base_url . $base_path . 'node/add';

$_SERVER['HTTP_HOST']   // Will point to http://www.example.com

可以看看 drupal6 或  drupal7的全局变量

https://api.drupal.org/api/drupal/developer%21globals.php/6.x

https://api.drupal.org/api/drupal/developer%21globals.php/6.x