Alphabetize thread list order in single forum

[Cyn]

I want to sort the thread display of one single forum by alphabetical order.
Having tried this suggestion https://vborg.vbsupport.ru/showthrea...threadid=42383 I think I'm misunderstanding the placement of the code.

Finding this in forumdisplay.php:

switch ($sortfield) {
case 'title':
case 'lastpost':
case 'replycount':
case 'views':
case 'postusername':
case 'voteavg':
break;

default:
$sortfield='lastpost';
}


it says to replace $sortfield='lastpost'; with $sortfield='title';

and to limit it to one forum it says replace it with an if-clause:

if($foruminfo[forumid]==x) $sortfield='title';
elseif($foruminfo[forumid]==y) $sortfield='rating';
else $sortfield='lastpost';



Since I don't want any sorting by rating I did this:

switch ($sortfield) {
case 'title':
case 'lastpost':
case 'replycount':
case 'views':
case 'postusername':
case 'voteavg':
break;


default:

if($foruminfo[forumid]==163) $sortfield='title';
else $sortfield='lastpost';
}

But I'm getting a parse error with it. Can someone point out my error?