How to keep already-set GET parameter values on form submission?

Question

I have a URL : foo.php?name=adam&lName=scott, and in foo.php I have a form which gives me values of rectangleLength & re

Answer 1

1. In menu (calling html) I call VendorSearch.php. variable fromvs is used in URL.
2. The target php VendorSearch.php will do different jobs based on the value of $_GET['fromvs']

3. In VendorSearch.php, aftersession_start(),

   $srchfor =""; $fromwhat = $_GET['fromvs']; $_SESSION['fromwhat'] = $fromwhat; $vs = $fromwhat;

4. Use hidden input to store URL passed variable

5. But this thie

Segment in Calling html .... Add a Subcontractor