Getting Date formatting to work?

Hi There,

I am trying to modify a plugin so that I can use expressionengine’s built in date formatting options from within my template.

I have a variable,

$created_at

that is a UNIX timestamp. This is then outputting in the following loop:

foreach ($this->EE->TMPL->var_single as $var)
{
    //  Parse image created_at
        if ($var == 'created_at')
        {            
            $tagdata    = $this->EE->TMPL->swap_var_single($var, $created_at, $tagdata);
        }
    }
}

$this->return_data .= $tagdata;

return $this->return_data;

(I’ve cut some code out to keep it short).

From reading the User Guide, I understand that the format=”%Y %m %d” style options should be automatically available when the variable is a UNIX timestamp. However, when I attempt to add a format=”” parameter the tag does not work.

Does anyone know why this is?

Many thanks.