Error: Post an RSS feed to twitter

Hi,
I am attempting to install " Post an RSS feed to twitter "

I have copy pasted the code on to my site, changed the settings variables (username, password, url) as follows:

$settings ['twitter-username'] = 'myusername';// Your twitter username
$settings ['twitter-password'] = 'mypassword';// Your twitter password
$settings ['feed-url'] ='myURL';//The url of the feed we are going to post to twitter

I get the following error when I attempt to run the script

Parse error: syntax error, unexpected T_STRING in /twitterfeed.php on line 13

Line 13 is the username line... if I remove 13, I get the same error for line 14, or 15 ... help please!

I should see the exact code to tell you what's going on, but it looks like you missed some bracket or dollar sign in the previous line.