Radio Buttons

[lazycarrot]

I'm totally naive to php coding and i'm trying to modify my website which was written for me by someone else in php. So i'm kind of shooting in the dark - but my modification really isn't that difficult... here goes.

 

I already have a form set up allowing the user to select values from drop down menus.

To this I want to add a further selection from a choice of 4 radio buttons.

This is the coding I've used (i've stripped it down to basics for simplicity)

it's inserted between the 'form' tags

 

<input type=radio name="choice" value="FP">  Front Print<br>

<input type=radio name="choice" value="BP">  Back Print<br>

<input type=radio name="choice" value="PP">  Pocket Print<br>

<input type=radio name="choice" value="CP">  Custom Print<br>

 

Ok - this part displays ok and seems to function as expected.

 

The form 'Action' sends the user to another php page so i need to access these values on a different page. This is where I'm running blind.

 

I just want a simple 'if' statement to set a variable based on the value of the radio buttons.

So something that looks like this....

 

if (choice[1].checked=true) {$printchoice = "Front Print";}

if (choice[2].checked=true) {$printchoice = "Back Print";}

if (choice[3].checked=true) {$printchoice = "Pocket Print";}

if (choice[4].checked=true) {$printchoice = "Custom Print";}

 

This part doesn't work - i've tried various combinations but i'm just taking wild guesses.

Any help would be much appreciated - thanks

[xangelo]

You would access the value via $_POST. So:

 

$_POST['choice']

would equal either FP,BP,PP,CP or NULL depending on what was chosen. To format it more in line with your code

 

switch($_POST['choice']){
case 'FP':
  $printchoice = 'Front Print';
break;
case 'BP':
  $printchoice = 'Back Print';
break;

case 'PP':
  $printchoice = 'Pocket Print';
break;

case 'CP': 
  $printchoice = 'Custom Print';
break;

default:
  $printchoice = 'Front Print';
break;
}

 

I added a default value, incase the user doesn't select anything. Another way (if you don't have to do any further processing) would be like this:

 

$allowed = array('FP'=>'Front Print','BP' => 'Back Print', 'PP' => 'Pocket Print', 'CP' => 'Custom Print');
if(array_key_exists($_POST['choice'],$allowed)) {
   $printchoice = $allowed[$_POST['choice']];
}

[lazycarrot]

Thanks xangelo - this is a real help...

Not managed to get it to work yet but at least now i know that i'm looking in the right direction.

 

Cheers!

[lazycarrot]

Ok - can't get this to work but.... i think i may have misled in my original description.

 

In fact the radio buttons are set on one page. The form method takes me to a 2nd page.

But I don't try to access the radio button code for another several pages after that.

 

I have a suspicion that I need to access the radio button code immediately i arrive at the page directed by the method statement  - can't find anywhere that confirms this but it kinda makes sense.

So - do i need to capture this info straight away and then pass it along to the other pages somehow? Or am i chasing another red herring?

[wildteen88]

When the form has been submitted you'll need to capture the selected value first and then pass this value as a hidden field to your next form.

[lazycarrot]

Thanks - it helps just to know you're looking in the right place!