不确定如何在php网站中构建URL

Question

There is an html table in my page with 3 columns, each one of them contains a form like this

<form id="filter" method="get" action="advanced_search_result.php">
<input type="hidden" value="Aurum" name="keywords">
<select onchange="this.form.submit()" name="maxnumber">
<option value="">10</option>
<option selected="selected" value="25">25</option>
<option value="50">50</option>
</select>
</form>

the outcome of a dropdown selection is the page to reload with a url like this "advanced_search_result.php?keywords=Aurum&maxnumber=25", and my question is....how do these querystring parameters get constructed? I have looked through the php file and cannot figure it out. What I want to do is add another parameter to the url when this action occurs.

Answer 1

That has absolutely nothing to do with php. you're using a get method on the form, so all the form field names/values are stuffed into the url as query parameters.

This would happen if the page was built with java, asp, ruby, perl, or even plain-old static html.