[Mediawiki-l] undefined variable

[Platonides]

Andreas Meyer wrote:
> Hello!
> 
> I installed AddMetas.php and get this in the error-logfile of Apache:
> 
> Undefined variable: parser in /vwww/insilence/root/extensions/AddMetas.php on line 25
> Trying to get property of non-object in /vwww/insilence/root/extensions/AddMetas.php on line 25
> 
> 
> The function in AddMetas.php looks like this:
> 
> function wfAddMetas( &$out, &$text ) {
>   global $wgTitle, $wgParser, $wgRequest, $action;
>   if(
>           $action !== 'edit'
>        && $action !== 'history'
>        && $action !== 'delete'
>        && $action !== 'watch'
>        && strpos( $parser->mTitle->mPrefixedText, 'Special:' ) === false
>        && $parser->mTitle->mNamespace !== 8
>   )
>   {
>     $name = $wgTitle->getPrefixedDBKey();
> 
>     $out->addMeta( 'Description', 'you meta description');
>     $out->addMeta( 'Keywords', $name.', your meta keywords' );
>     //$out->addMeta( 'Author', 'the author');
>     //$out->addMeta( 'Rating', 'General');
>     //$out->addMeta( 'Revisit', '1 DAYS');
>     //$out->addMeta( "revisit-after", "5 days");
>   }
>   return true;
> }
> 
> I am not a PHP-specialist. What is wrong?
> 
> Regards

Change $parser-> with $wgParser->
Although the way it uses is not a very good one.