Need help with RegEx

Hello Everyone, I am having a bit of problems wrapping my head around regular expressions. I thought I had a good grip on them but, for some reason, the expression I've created below simply doesn't work! Basically, I need to retreive all of the text between two unique and specific tags but I don't need the tag text. So let's say that the tag is <tag lang='ttt'>THIS IS A TEST</tag> I would need to retreive THIS IS A TEST only and nothing else. Now, a bit more information: I am using cURL to retreive the entire contents of a webpage into a variable. I am then trying to perform the following regular expression on the retreived text: $trans_text = preg_match("\/<div id=result_box dir=ltr>(.+?)<\/div>/"); The problem is that when I echo the value of $trans_text variable, I end up with the entire HTML of the page. Can anyone clue me in to what I am doing wrong? Thanks, Anthony