Help Counting Dynamic Radio Buttons

vmusic

Hi,
I have a situation where a web page may have an unknown number of radio buttons set with the same name.

The web page could be
<h2>Tell your favorite fruit</h2>
<input type="radio" name="rb1" value="peaches">

etc..

Whether the radio buttons are clicked or not, I must be able to count how many options there are.... so in the example above, how can php determine how many options there are regardless of whether the user checks one or not?
?????

Please... help me. How can I use php to obtain a count of a radio button? The count function did work when I tried it?

I can not use checkboxes I have no choice, they must be radio buttons, and my business logic depends on how many (these are dynamic) there are

Thanks

Shrike

It can't be done, since PHP will only ever see the radio button which is checked. You could do something with Javascript, but that would require using Javascript to submit the form. Probably not the ideal situation.

rehfeld

since your the one who feeds these radio buttons to the cleint, when dynamiclly creating the page, you could also output a hidden field which contains the value of how many radio buttons you supplied.

dewen

rehfeld is right. You can only count the buttons before you send out the button page. So hidden field, session variable could help to pass the number to next page

bodzan

When you say you have an "unknown number" of radio buttons on a page does that mean that they differ regarding the data from the database or if not that how? There is the key to this problem.

If they are generated from database data you can put the key in the loop which generates them and like rehfeld said.

If it depends on something else let us know and maybe we could figure it out the different way.