Passing URL data to form Options

[Justin S.]

I'm trying to determine a way to pass URL data into an HTML form. This value would then either populate as a default value when the form is loaded, or just as a hidden form value.

For example, if the URL was:
http://www.mydomain.com?variable1="ABC"

Then a corresponding form on the page containing an input would contain that value, such as:
<input type="hidden" name="variable1" value="ABC">


The end goal then, would be to include that variable/value when the form is submitted.


Not sure if this has to be done with javascript or not, or if it can be done with straight HTML.


Any help would be greatly appreciated!


Thanks!
Justin

This post has been edited by Justin S.: Apr 19 2016, 01:01 PM

[pandy]

Not with HTML. It could be done with JavaScript, but if it's important you should rather use a server side programming language.

[Christian J]

It can't be done with HTML alone. Javascript can do it, but a server-side script like PHP is more reliable.

Note that a malicious user can manipulate the web page by using a specially crafted URL, so be sure to sanitize the data or compare it with a whitelist in the script before printing it on the web page.

Edit: good timing, pandy.

[pandy]

Not on your part.

[Justin S.]

Thanks!!