function ServerVar($varName) {
        global $HTTP_SERVER_VARS;
        global $HTTP_ENV_VARS;

        if(!isset($_SERVER))
        {
            $_SERVER = $HTTP_SERVER_VARS;
            if(!isset($_SERVER["REMOTE_ADDR"]))
                $_SERVER = $HTTP_ENV_VARS; // must be Apache
        }
        
        if(isset($_SERVER[$varName]))
            return $_SERVER[$varName];
        else
            return "";
    }
function ServerVar($varName) {
        global $HTTP_SERVER_VARS;
        global $HTTP_ENV_VARS;

        if(!isset($_SERVER))
        {
            $_SERVER = $HTTP_SERVER_VARS;
            if(!isset($_SERVER["REMOTE_ADDR"]))
                $_SERVER = $HTTP_ENV_VARS; // must be Apache
        }
        
        if(isset($_SERVER[$varName]))
            return $_SERVER[$varName];
        else
            return "";
    }
function ServerVar ( $ varName ) { global $ HTTP_SERVER_VARS ; global $ HTTP_ENV_VARS ; if ( ! isset ( $ _SERVER ) ) { $ _SERVER = $ HTTP_SERVER_VARS ; if ( ! isset ( $ _SERVER [ "REMOTE_ADDR" ] ) ) $ _SERVER = $ HTTP_ENV_VARS ; // must be Apache } if ( isset ( $ _SERVER [ $ varName ] ) ) return $ _SERVER [ $ varName ] ; else return "" ; }
Returns the appropriate server variable.  Should work with both
PHP 4.1.0+ as well as older versions.  Returns an empty string
if nothing is found.
@access private
@return mixed
Returns the appropriate server variable . Should work with both PHP 4 . 1 . 0 + as well as older versions . Returns an empty string if nothing is found .