Re: Fatal error: Unsupported operand types

[kmh496 <kmh496@xxxxxxxxxx>]

2006-04-16 (일), 19:35 +0900, kmh496 쓰시길:
> can somebody explain why
> 
>             $this->param = $this->SYSTEM->db->answer + $this->param;
> 
> is causing the error 
> 
> 
> Fatal error: Unsupported operand types
> in /var/www/current/mjguest/modules/settings.php on line 52
> 
> 
> 
> context is 
> 
> 
>         function settings(&$SYSTEM)
>         {
>             $this->SYSTEM = &$SYSTEM;
>             $this->SYSTEM->db->ask(1, 'settings_load');
>             $this->SYSTEM->db->get_row();
> 
>             $this->param = $this->SYSTEM->db->answer + $this->param;
>         }
> 
> 
> 
> 
> -- 

what are they trying to do//?

for what "does param mean" question, param is just above that part..

    class settings
    {
        var $SYSTEM;

        var $param  = array

        // Maximum length for web site title
        (   'titlelen'          => 28       # DEFAULT: 28   # MAXIMUM:
50

        // Maximum length for administrator email
        ,   'adminmaillen'      => 50       # DEFAULT: 50   # MAXIMUM:
80

        // Max Width and Height of avatars thumbnails (in pixels)
        ,   'userpic' => array
            (   'width'     => 60       # Width in pixels   # DEFAULT:
60       # EDIT ACCORDING TO CUSTOM LAYOUT
            ,   'height'    => 60       # Height in pixels  # DEFAULT:
60       # EDIT ACCORDING TO CUSTOM LAYOUT
            )

        // Available date-time formats (valid patterns for php "date()"
function)
        ,   'dateformats' => array
            (   'd.m.Y h:ia'            => 'D.M.Y 12h'      # Business
international
            ,   'm/d/Y h:ia'            => 'M/D/Y 12h'      # American
            ,   'Y-m-j h:ia'            => 'Y-M-D 12h'      # Asian
            ,   'd/m/Y H:i'             => 'D/M/Y 24h'      # European
            ,   'F, jS Y h:ia'          => 'MM, Dth Y 12h'  # English
            ,   'd.m.Y @ B .\b\e\a\t'   => 'D.M.Y @ .beat'  # Swatch(R)
Internet time
            )#  PATTERN                 => REPRESENTATION
        );

        function settings(&$SYSTEM)
        {
            $this->SYSTEM = &$SYSTEM;
            $this->SYSTEM->db->ask(1, 'settings_load');
            $this->SYSTEM->db->get_row();

            $this->param = $this->SYSTEM->db->answer + $this->param;
        }




the db->answer is ...................  

       function ask()
        {
            $qparams = func_get_args();

            $this->__lastquestion = $qparams[1];

            $this->query($qparams[0],
strtr(vsprintf($this->questions[$qparams[1]], array_slice($qparams, 2)),
$this->tables));
        }

        function get_field($num = 0)
        {
            $this->answer = @mysql_fetch_row($this->__cachedquery);

            return ($this->answer ? $this->answer[$num] :
$this->__error());
        }

        function get_row()
        {
            $this->answer = @mysql_fetch_assoc($this->__cachedquery);

            return ($this->answer ? true : $this->__error());
        }

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