how to: question mark in form action

Question

I want to use a button to link to a page. However, the page url is something like domain.com/page?action=register.

I really need this action added to my:

form action="domain.com/page?action=register"

Form attribute, but when I try it with these settings, it will only go to domain.com/page

I've tried encoding the ? into %3F but that doesn't work.

Any help?

Answer 1

The ? values are set by the form, as long as the form's method is set to "get" (rather than "post", which doesn't submit the values in the URL). So, if you want to submit a form to page?action=register, you'd do the following:

 <form action="domain.com/page" method="get">
 <input type="hidden" name="action" value="register">

It will also pass the other form values along in the URL, creating something like:

domain.com/page?action=register&first_name=john&last_name=doe

EDIT: As @ninetwozero mentioned in a comment, the scenario you describe above should work:

<form action="domain.com/page?action=register" method="post">
[rest of form]

I just tested the above and it passed both the ?action=register and the form values from my form. So, whichever you prefer.