Need Help for Hide Mod (2.0.4)

[Sweetie]

I just modify this mod to allow specific goups that can view hidden content without replying, accodring to
http://forums.invisionize.com/index.php?sh...ic=53968&st=360

Find:

if(in_array($ibforums->member['id'], $allposters))


Replace with this:


if(in_array($ibforums->member['id'], $allposters) OR ($ibforums->member['mgroup'] =='4') OR ($ibforums->member['mgroup'] == '9'))

But after modified this thing, i got this error below when access SOME SECTIONS, the rest of sections have no effect ? What's wrong with this mod ?

IPB WARNING [2] in_array(): Wrong datatype for second argument (Line: 550 of /sources/lib/post_parser.php)

IPB WARNING [2] in_array(): Wrong datatype for second argument (Line: 550 of /sources/lib/post_parser.php)