Hook generates whitespace - Printable Version

Hook generates whitespace - Printable Version

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+--- Thread: Hook generates whitespace (/showthread.php?tid=8852)

Hook generates whitespace - El Forum - 06-03-2008

[eluser]dioony[/eluser]
Hi there!

I have a problem with my hook. If the hook is enabled, the hook creates a whitespace at the beginning of each page. Normally this is not a problem... But with RSS there is a problem, because XML (thus rss) expects the xml-expression at the first character...

Normally the output should generate "<?xml version=...".
If hooks are enabled it generates " <?xml version=...".

My Hook:

Code:
class TitleHook

{

    function doTitleHook()

    {

        $CI =& get_instance();

        $output = $CI->output->get_output();                    

        if(isset($CI->main_title)){

            $title = "WildeWetten - ".$CI->main_title;            

        }else{

            $title = "Normal Title";

        }

        $output = str_replace("{{MAIN_TITLE}}",$title, $output);

        $CI->output->_display($output);

    }

}

in hooks-config:

Code:
$hook['display_override'][] = array('class'    => 'TitleHook',

                                    'function' => 'doTitleHook',

                                    'filename' => 'TitleHook.php',

                                    'filepath' => 'hooks'

                                   );

i also tested something like

Code:
$output = substr($output,1)

, but it seems, that the whitespace will be added after the hook...

Does anybody know how to fix?