Retrieiving form data from array

[nick2price]

Hi guys. I have a form where I have dynamic fields, so I dont know how many fields there will be. To handle this, each tr has td's like so

<td><input type="text" placeholder="Giving" class="selector" name="giving2[]" autocomplete="off"/></td>
<td><input type="text" placeholder="Getting" class="selector" name="getting2[]" autocomplete="off"/></td>

So, the name is an array, and it is the same in all rows. At the moment, to retrieve the data, I am trying

foreach ($_POST['giving2'] as $item) {
	$giving += $item;
}
foreach ($_POST['getting2'] as $item) {
    $getting += $item;
}

$body = "
===== Enquiry: $reference =====\n
Enqury made: ".date("d/m/y H:i:s",time())."\n\n

Giving: $giving\n\n
Getting: $getting\n\n"
;

Then I send it via email. The output I am getting for these fields is 0 though, so its not giving me the correct values. Am I missing something here or doing something wrong?


Cheers

[Fou-Lu]

What is the datatype of the values put into those fields?
If they are numeric, you can run a simple array_sum() on it. If they are not numeric, you intend to concatenate them using the . operator instead of the +, but then you should look at using implode() instead of iterating with foreach.

[nick2price]

Thanks for the reply, sorry its gone a bit over the top of me. What I showed is one row, its really more like

<tr>
   <td><input type="text" placeholder="Giving" class="selector" name="giving2[]" autocomplete="off"/></td>
   <td><input type="text" placeholder="Getting" class="selector" name="getting2[]" autocomplete="off"/></td>
</tr>

<tr>
   <td><input type="text" placeholder="Giving" class="selector" name="giving2[]" autocomplete="off"/></td>
   <td><input type="text" placeholder="Getting" class="selector" name="getting2[]" autocomplete="off"/></td>
</tr>

...

And I also have a javascript method where more rows with the same fields can be added, so I will never be sure as to the total number of rows. So what I have done is made it so all names are an array. The field inputed into these fields is text. The reason I used a foreach loop is because wouldnt I need to loop the array which holds my values, especially if I dont know how many there will be?

My overall aim is to take all the inputs from all the fields, and send them in an email. So, the values from row 1 will display first Giving[0] Getting[0], then row 2 etc. As I say though, I cannot do it like this because I dont know how many there will be.

Nick

[Fou-Lu]

You mean you want to match up the two arrays so data from the first one matches with the data in the second?
There are a number of ways to do this. I'll iterate only.

PHP Code:

$sResult = "";
if (count($_POST['giving2']) == count($_POST['getting2']))
{
    while (($curGiv = current($_POST['giving2'])) && ($curGet = current($_POST['getting2'])))
    {
        $sResult .= sprintf("Giving: %s\nGetting:%s\n\n", $curGiv, $curGet);
        next($_POST['giving2']);
        next($_POST['getting2']);
    }
} 


Something like that would work. HTML could be massaged as well to represent a multidimensional array of getting and giving together.