Help with regex for RTF tags

[dragonwell]

Need to remove RTF tags. I found this PHP code in a forum and I'm trying to use the expressions:

$Abstracts = $fields->$Abstract;

//time to clean up those unwanted rtf codes

$matches = array('/(\{\\\)(.+?)(\})/','/(\\\)(.+?)(\b)/');

$CleanedAbstracts = preg_replace($matches,'',$Abstracts);

$CleanedAbstracts = str_replace('}','',$CleanedAbstracts);

$CleanedAbstracts = trim($CleanedAbstracts);

Apparently the preg_replace function can take an array of expressions to match. I figure I can just take both expressions and combine them with the | operator. What would that expression look like?