URL with apostrophe's -- rawurlencode

Hello,
I could use some help here. I have an entry in the MySQL, that use an
apostrophe, for example lets call it "O'Reilly". I have added
addslashes to my insert statement so MySQL accepts the apostrophe with out complaining.

The problem I am having is I use this information "O'Reilly" in a
URL in the site. I have tried using rawurlencode and I have not been able to get it work.

Here's my PHP:
$url ="user_area_results_detail.php?area=$row[area]&username=$row[username]";
$url = rawurlencode(rawurlencode($url));

echo ("<tr bgcolor='$color'>");
echo("<td><a href='url=$url'>$row['area']</a>
</td>");

When I mouse over and view the URL, PHP thinks the apostrophe is the end.

Bad URL:
"http://user_book_results_detail.php?book=O"

It should be this:
"http://user_book_results_detail.php?book=O'reilly"

Sorry if I an not entirely clear explaining this.
Suggestions?

This works!
$url = "user_area_results_detail.php?area=".rawurlencode(addslashes($row['area']))."&username=$row[username]";