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Posted by Jerim79 on 04/06/07 16:55
On Apr 6, 9:08 am, Erwin Moller
<since_humans_read_this_I_am_spammed_too_m...@spamyourself.com> wrote:
> Jerim79 wrote:
> > My situation is that I have a form that asks the user for a number.
> > Next, I execute a while loop that displays a group of questions the
> > amount of times the customer entered. For instance, the loop looks
> > this:
>
> > while ($Number!=0){
> > <input type="radio" name="Age[]" value="20-30">20-30
> > <input type="radio name="Age[]" value="30-40">30-40
> > <input type="radio name"Age[]" value="40-50">40-50
> > $Number--;
> > }
>
> > Let's say someone entered 3 for $Number. When the loop executes it
> > will produce:
>
> > echo" <input type=\"radio\" name=\"Age[]\" value=\"20-30\">20-30
> > <input type=\"radio\" name=\"Age[]\" value=\"30-40\">30-40
> > <input type=\"radio\" name=\"Age[]\" value=\"40-50\">40-50";
>
> > echo" <input type=\"radio\" name=\"Age[]\" value=\"20-30\">20-30
> > <input type=\"radio\" name=\"Age[]\" value=\"30-40\">30-40
> > <input type=\"radio\" name=\"Age[]\" value=\"40-50\">40-50";
>
> > echo" <input type=\"radio\" name=\"Age[]\" value=\"20-30\">20-30
> > <input type=\"radio\" name=\"Age[]\" value=\"30-40\">30-40
> > <input type=\"radio\" name=\"Age[]\" value=\"40-50\">40-50";
>
> > The problem is that with radio buttons, you can only choose one
> > option. With this code, it only allows the user to choose one option
> > from among the 9 listed, instead of one from each set. I am trying to
> > find a way to dynamically name each set. If I use checkboxes, then it
> > records the information correctly and correctly writes it to the
> > database. However, checkboxes don't look good for this application in
> > my opinion, and there is no way for me to keep someone from checking
> > more than one box, that I know of. Here is the PHP code I am using to
> > catch the user's input and write it to a database:
>
> > $Age = $_POST['Age'];
>
> > for ($i=0; $i < $Number; $i++) {
> > $query="INSERT INTO table VALUES('$Age[$i])";
> > $result = mysql_query($query) or die('Query failed: ' .
> > mysql_error());
> > }
>
> > Like I say, that works fine if I use checkboxes, without changing the
> > HTML name="Age[]". I am looking for a way to define "sets" of radio
> > buttons with the same name, so that only one from within a set can be
> > chosen at a time. Is there something such as:
>
> > echo "<group name="1">
> > <input type=\"radio\" name=\"Age[]\" value=\"20-30\">20-30
> > <input type=\"radio\" name=\"Age[]\" value=\"30-40\">30-40
> > <input type=\"radio\" name=\"Age[]\" value=\"40-50\">40-50
> > </group>";
>
> > echo "<group name=\"2\">
> > <input type=\"radio\" name=\"Age[]\" value=\"20-30\">20-30
> > <input type=\"radio\" name=\"Age[]\" value=\"30-40\">30-40
> > <input type=\"radio\" name=\"Age[]\" value=\"40-50\">40-50
> > </group>";
>
> > echo "<group name=\"3\">
> > <input type=\"radio\" name=\"Age[]\" value=\"20-30\">20-30
> > <input type=\"radio\" name=\"Age[]\" value=\"30-40\">30-40
> > <input type=\"radio\" name=\"Age[]\" value=\"40-50\">40-50
> > </group>";
>
> > This may be more of a HTML question, but I am open to any solution
> > that would help. Any way to use PHP to accomplish my goal? Even if
> > there is a way to dynamically name each set such as:
>
> > echo "while ($Number!=0){
> > <input type=\"radio\" name=\"Age$Number[]\" value=\"20-30"\>20-30
> > <input type=\"radio\" name=\"Age$Number[]\" value=\"30-40\">30-40
> > <input type=\"radio\" name=\"Age$Number[]\" value=\"40-50\">40-50
> > $Number--
> > } ";
>
> > I would just have to create a loop to run through each array when
> > writing to the database, but that shouldn't be a problem.
>
> Hi,
>
> You cannot make a group of the radiobuttons since you named them all Age[]
> and that IS the group as far as HTML is concerned.
> So just code it in such a way they have different names, like this:
>
> <?php
> // receive number
> $number = (int)$_POST["number"];
> ?>
> <input type="hidden" name="numberOfAges" value="<?php echo $number; ?>">
> <?php
> for ($count=0;$count<$number;$count++){
> ?>
> <input type="radio" name="Age<?php echo $number; ?>[]"
> value="20-30">20-30
> <input type="radio name="Age[]<?php echo $number; ?>"
> value="30-40">30-40
> <input type="radio name"Age[]<?php echo $number; ?>"
> value="40-50">40-50
> <?php
> }
> ?>
>
> Now them radiogroups have names like Age0[] and Age1[]
>
> And in the receiving script:
> $numberOfAges = $_POST["numberOfAges"];
> for ($count=0;$count<$numberOfAges;$count++){
> $name = "Age".$count;
> $theSelectedValue = $_POST[$name];
> // Do whatever you want with $theSelectedValue
>
> }
>
> Not tested, but I hope you get my drift. :-)
>
> Regards,
> Erwin Moller
Thanks, that did the trick. I was just putting my variable before []
instead of after. Odd thing is that when I read it into the database,
I just use $Age[$i], where I thought I would have to use $Age[$i]
$Number. Not sure what is going on under the hood to make $Age[]
$Number into just $Age.
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