Variable question, yet another

Alright... here's my situation for those that didn't read my string of messages yesterday.. (plus a bit more background information as to why I'm doing this) I'm writing an engine for a content managing system. Part of the system is a menu builder. I use 2 tables, (this is a mysql database) menu and menu_parts. They look like this Table menu ID : Integer; (auto increments, key) Name : Varchar[128]; Type : Integer; (unused now) Table menu_parts ID : Integer; Menu : Integer; (which menu this belongs to) Order : Tinyint; (all menu items have incremental numbers) Type : Tinyint; Data : Text; My code looks like this [code] $query="SELECT type,data FROM menu_parts WHERE menu='1' ORDER BY m_order"; $result=mysql_query($query); if($myrow=mysql_fetch_array($result)) { do { if($myrow["type"]==1) eval("echo \"".$myrow["data"]."\";"); elseif($myrow["type"]==2) eval($myrow["data"]); else echo $myrow["data"]; } while($myrow=mysql_fetch_array($result)); } [/code] So depending on the menu_parts type, it will display the data field differently. If the type=0, it simple outputs the data field plain text. If the type=1, it adds echo to both sides and outputs data. If the type=2, it evaluates the code as is. The problem I'm having, is with type 1. The main reason for this type is say I want to send the user to a php script and pass parameters (I'm going to use []'s so those of you with html email readers don't parse it) [a href="myscript.php?username={$userdata["username"]}"]Goto MyScript.php[/a] So when the line hits type 1, it evals like this echo "[a href="myscript.php?username={$userdata["username"]}"]Goto MyScript.php[/a]"; Of course this yields an error because of the "'s in the anchor tag. But if I add slashes the evaluated code will be echo "[a href=\"myscript.php?username={$userdata[\"username\"]}\"]Goto MyScript.php[/a]"; Which will cause the $userdata["username"] variable to not process properly. I thought about making type one do echo ''; instead of echo ""; but then if the user has a ' in their menu it won't function properly. I wish I could do this with regular expressions, but I'm not fluent with them (and also doubt I could succeed in my task if I did). I think I described my problem as thorough as I could have. Any help, comments, etc would be greatly appreciated. -Justin