[Harutyun Dr.]

I'm writing plugin wich adds some link to navbar. I'm trying to replace string

PHP Code:

<if condition='"$vboptions['enablememberlist']"> 


with some string added to it. So i wrote

PHP Code:

$vbulletin->templatecache['navbar'] = str_replace('<if condition="$vboptions[\'enablememberlist\']">',  'some string'.'<if condition="$vboptions[\'enablememberlist\']">', $vbulletin->templatecache['navbar']); 


But it doesn't work. Can someone help me? Thanks