On 03/11/2011 02:33 PM, Jim Lucas wrote:
> On 3/11/2011 12:03 PM, Shawn McKenzie wrote:
>> On 03/11/2011 01:28 PM, Danny wrote:
>>> Hi guys,
>>> I have a form that has a long list of radio-bottons inside of it. The
>>> radio-buttons are dynamically created via php and MySQL.
>>> Here is an example of one of the radio buttons:
>>> <input type="radio" name="<?php print ("radio_".$result_from_mysql) ; ?>" 
>>> value="0">
>>> <input type="radio" name="<?php print ("radio_".$result_from_mysql) ; ?>" 
>>> value="1">
>>> Now, when I submit this form to another page for processing, how would I 
>>> "catch"
>>> the above radio-button's $_POST name since I do not know the name, only 
>>> that it
>>> starts with "radio_" ?
>>> Thank You
>>> Danny
>> The most common and flexible way to do this sort of thing is to use
>> arrays instead:
>> <input type="radio" name="radio[<?php echo $result_from_mysql; ?>]"
>> value="0">
>> <input type="radio" name="radio[<?php echo $result_from_mysql; ?>]"
>> value="1">
>> Then:
>> foreach($_POST['radio'] as $key => $value) {
>>    echo "radio for $key is $value";
>> }
> Your example would be good if the OP wanted checkbox'es.  But with radio
> buttons, the whole point (most of the time) is to have the form only allow you
> to have one of the radio input fields selected at any given time.  How you
> showed it, it would not see the uniqueness of the radio button names, and
> therefor allow more than one of the radio input fields to be selected at a 
> time.

One radio button of the same name selected at a time yes.  From the OP's
code of two radios, one with value 0 and one with value 1, I assumed
these were to be a pair with the same name with only one able to be
successful.  This extends to arrays as well:

<input type="radio" name="radio[1111]" value="0">
<input type="radio" name="radio[1111]" value="1">

<input type="radio" name="radio[555]" value="0">
<input type="radio" name="radio[555]" value="1">

This works as expected, the same as the code I posted.


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