php获取网站域名和地址的代码
http://www.jb51.net/article/15514.htm
function pma_getenv($var_name) { if (isset ( $_server [$var_name] )) { return $_server [$var_name]; } elseif (isset ( $_env [$var_name] )) { return $_env [$var_name]; } elseif (getenv ( $var_name )) { return getenv ( $var_name ); } elseif (function_exists ( 'apache_getenv' ) && apache_getenv ( $var_name, true )) { return apache_getenv ( $var_name, true ); } return ''; } if (empty ( $http_host )) { if (pma_getenv ( 'http_host' )) { $http_host = pma_getenv ( 'http_host' ); } else { $http_host = ''; } } //echo htmlspecialchars($http_host );