cgi|变量|函数
            
$array = array(
               "REMOTE_ADDR",
               "DOCUMENT_ROOT",
               "GATEWAY_INTERFACE",
               "SERVER_SOFTWARE",
               "SERVER_NAME",
               "SERVER_PROTOCOL",
               "SERVER_PORT",
               "SERVER_ADMIN",
               "SERVER_SIGNATURE",
               "REQUEST_METHOD",
               "REQUEST_URI",
               "PATH_INFO",
               "PATH_TRANSLATED",
               "SCRIPT_NAME",
               "SCRIPT_FILENAME",
               "QUERY_STRING",
               "REMOTE_HOST",
               "REMOTE_ADDR",
               "REMOTE_USER",
               "REMOTE_IDENT",
               "CONTENT_TYPE",
               "CONTENT_LENGTH",
               "HTTP_ACCEPT",
               "HTTP_ACCEPT_CHARSET",
               "HTTP_ACCEPT_LANGUAGE",
               "HTTP_ENCODING",
               "HTTP_USER_AGENT",
               "HTTP_CONNECTION",
               "HTTP_HOST",
               "HTTP_REFERER",
               "AUTH_TYPE"
              );
echo '
| Name | Value | 
|---|---|
| $array[$i] | " . $value . " | 
| $array[$i] | " . $$array[$i] . " | 
 
                        
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