replacing dynamic variable in preg_replace

[Steve Morgan <steve@xxxxxxxxxxxxxxxxxx>]

I am working on a script which takes a list of variables form a 
database. The problem i am currently having is some of the variables 
have other variables in the content , i.e. $temp="<h1>$title</h1>" (made 
up example), is something that might come out of the mysql.

   $query=mysql_query("SELECT `code`,`varname` FROM `k_sys`");
  
   while(list($code,$var)=mysql_fetch_array($query)){
       $code=str_replace("-user-",USER,$code);
       $code=preg_replace("/--(\w+)--/","$$1",$code); // PROBLEM
       $$var=$code;
   }

is the current code, i'm setting off variables with a --, so if 
variables $title, is in the mysql, the above example would be 
<h1>--title--</h1> instead. When i do the above i would just get like 
$title as an output. I think its due to how mysql is storing the 
information, but a stripslashes didnt work. If anyone can help it'd be 
much appreciated.

Steve Mo'gan

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