Page navigation based on a drop down 2

[Kalisto]

I have inherited a php site, which I'll admit is not something I know much about.

I can understand most of what is present, but I have been asked if I can put a drop down list in with different countries in it (Done that bit).

Now, on selecting a country and pressing an ok button, I need to navigate to a different page which is specific to the selected country.

Is that something that can be done in the PHP Page (i.e. Post back to it's self, look to see if a value has been selected from the drop down list, if it has then work out the url and redirect, if not show an error message)

or should I be looking to do this client side with javascript ?

My instinct tells me its the firsto option I need, but before I spend too much time on this I want to make sure Im right.

Any hints on how to do it, if Im right / wrong, or other better suggestions are more than welcome

K

 

[vacunita]

Sure it can be done with PHP.

Surround the dropdown with a form, and either have JS submit it automatically upon selecting an option, or just have a submit button as you said than can be pressed after choosing an option.

The form should be submitted either t itself or even to an intermediate page that does the checking and redirects accordingly, either way the code is the same.

if(isset($_POST['nameofdropdown']){ [green]check to see if the dropdown has been used, [/green]

[green]use value from drop down to determine location [/green]
header("location:otherpage.php"); [green]\\Issue header redirect to send to the determined page[/green]
}

----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

 

[southbeach]

Aside from vacunita's suggestion, you can also JS for this sort of thing (as you mentioned). The question I have is if you need to carry additional information to the re-directed page or just go there?

If you just need to jump to a page a simple onchange element will do

<select id="country" onchange="window.location.href=this.value">
<option value="[URL unfurl="true"]http://www.mysite.com/us/">USA</option>[/URL]
<option value="[URL unfurl="true"]http://www.mysite.com/br/">Brazil</option>[/URL]
<option value="[URL unfurl="true"]http://www.mysite.com/en/">England</option>[/URL]
</select>

Now, if you need to port over a whole lot of data with you, submitting the form may be necessary, then change your element to
<select id="country" onchange="document.formname.submit();">
<option value="

http://www.mysite.com/us/">USA</option>

<option value="

http://www.mysite.com/br/">Brazil</option>

<option value="

http://www.mysite.com/en/">England</option>

</select>
[/code]

If I am not mistaken, both of these will make your drop down list jump out of your existing page!

Happy jumping!!!


--
SouthBeach
The good thing about not knowing is the opportunity to learn - Yours truly, 2008.

 

[Kalisto]

Thanks, I got both solutions to work for me, just so I could learn.

K

 

[ingresman]

It's a good idea to understand how both JS and PHP methods work. Sometimes people turn off JS and I suppose it's a business decision if you want to trade with these people or not. With the rise of ajax I suspect less and less people will switch of JS as time goes on.