Re: $_GET String Edit

Sorry for the confusing initial request. You were correct in assuming that I am generating URLs like: page.php?foo1=bar1&foo2=bar2&foo1=bar3&foo2=bar4 So I suppose the consise follow-up question is how can I get a hyperlink to change one of those varibles in the string. In the past I have just tacked a varible on to the end of the string, but I don't want to be redundant. Thanks again. "Chris Shiflett" <shiflett@php.net> wrote in message news:20031123033231.54627.qmail@web14305.mail.yahoo.com... > --- "Jed R. Brubaker" <jedbrubaker@hotmail.com> wrote: > > I am trying to make a page navigation menu (we have all seen them, > > "Page: 1 2 3..."), and I would like to continue doing this via the > > URL variables. Right now, each of the page numbers is a hyper link > > is set like this: > > > > "page.php?".$_SERVER["QUERY_STRING"]."&more variables > > here." > > > > The problem, however, is that those variables are a string. If the > > variables that the menu defines are already in the string, it > > doesn't update them, it just adds more definitions to the URL. > > I had a hard time interpreting your question, but I think you're saying > that you are generating URLs like this: > > /page.php?foo1=bar1&foo2=bar2&foo1=bar3&foo2=bar4 > > And, you're wanting to not duplicate variables in your URL, correct? > > You could always keep your query string in an array or something. This > would allow you to update values in the array prior to the end of your > script. You can start this array using $_GET: > > $query = $_GET; > > Of course, you might want to rather filter this data on each page, so that > you don't spread tainted data more than necessary. Regardless, this will > allow you to update values in your query string. If you want to update > foo1, you don't have to care whether it's already set: > > $query['foo1'] = 'newvalue'; > > Hope that helps. > > Chris > > ===== > Chris Shiflett - http://shiflett.org/ > > PHP Security Handbook > Coming mid-2004 > HTTP Developer's Handbook > http://httphandbook.org/ > RAMP Training Courses > http://www.nyphp.org/ramp