PHP: passing GET between multiple pages

I'm building a set of pages where I have a number of GET variables and it is often valuable to keep passing it along to the next page. This leads to ugly code where I have to have "if this $_GET variable is set, dynamically add it to this hyperlink". This is, in many senses, not a problem; but I had the thought "there must be a better way to do this", I mean after all basically all I want is to take the '?' and eve开发者_如何学Gorything after it and append it to the links on that page, it would seem this should be rather simple (or at least possible to do in a for loop). I tried google searching but couldn't find anything, so I figured I'd see if any of you happen to know.

Why not use SESSION? Because these pages need to be capable of being bookmarked.

Thank you.

A quick idea would be to :

• use parse_url to extract the parameters from the current URL to an array
  • or directly use $_GET, which already contains those parameters
• use array_merge, to merge :
  • The list of existing parameters (see previous point)
  • The list of new parameters
• use http_build_query to build the new query-string
  • Notice you might have to specify the third parameter : by default, it will be equal to & -- which is not always what you need, depending on the kind of output you are generating

And, once you have your new query-string, it's just matter of concatenation :

• The new URL, without any query string
• The ? character
• The new query-string

ANd here you are ;-)

This variable contains the request parameters. You could pass these to each link on the pages.

eg: foo=test1&bar=test2

Prepend the ? and you are done.

$_SERVER['QUERY_STRING']