Need to send an array in PHP

Question

I'm trying to send multiples values to a PHP form. This is the form that I use to send values:

<form id="form1" name="form1" method="POST" action="../WSweb/Factura.php">
    <table width="561" height="79" border="1">
        <tr>
            <td width="30%" height="32">ProductID</td>
            <td width="30%" height="32">SKU</td>
        </tr>
        <?php do { ?>
            <tr>
                <td><?php echo $row_test1['ProductID']; ?>
                    <input
                        type="hidden"
                        name="Product[id][ProductID]"
                        value="<?php echo $row_test1['ProductID']; ?>"
                    />
                </td>
                <td><?php echo $row_test1['SKU']; ?>
                    <input
                        type="hidden"
                        name="Product[id][SKU]"
                        value="<?php echo $row_test1['SKU']; ?>"
                    />
                </td>
            </tr>
        <?php } while ($row_test1 = mysqli_fetch_assoc($test1)); ?>
    </table>

    <input type="submit" value="Update" name="Facturar">
</form>

And this is the action file:

if(isset($_POST['Update']))
{
    $ProductID=$_POST['Product'];
    print_r(json_encode($ProductID));
}

The problem that I have is when I send multiple values, for example the below table:

ProductID      SKU
103              WH004BI
137              VO007BI

I alway get this result:

{"id":{"ProductID":"137","SKU":"VO007BI"}}

When I actually want to get a result like this:

{"id":[{"ProductID":"103","SKU":"WH004BI"},{"ProductID":"137","SKU":"VO007BI"}]}

Change name="Product[id][ProductID]" to name="Product[id][][ProductID]". HTML can have arrays too! This is the same as if you were appending an element to array using the [] syntax. Do this for all of the named inputs. — HarryTheWulf
– HarryTheWulf, Commented May 8, 2019 at 16:21
i just doing but i get this ProductID SKU 103 WH004BI 137 VO007BI its any form to get this? {"id":[{"ProductID":"103","SKU":"WH004BI"},{"ProductID":"137","SKU":"VO007BI"}]} — Javier Joasimar Palos Flores
– Javier Joasimar Palos Flores, Commented May 8, 2019 at 16:34
I don't think you can get that structure from a form directly, you'll need to rearrange the data in PHP. — Barmar
– Barmar, Commented May 8, 2019 at 16:36
i exect somenthing like that {"id":[{"ProductID":"103","SKU":"WH004BI"},{"ProductID":"137","SKU":"VO007BI"}]} — Javier Joasimar Palos Flores
– Javier Joasimar Palos Flores, Commented May 8, 2019 at 17:12

HarryTheWulf · Accepted Answer · 2019-05-08 17:42:33Z

2

You're going to want to do something like this:

<form id="form1" name="form1" method="POST" action="../WSweb/Factura.php">
    <table width="561" height="79" border="1">
        <tr>
            <td width="30%" height="32">ProductID</td>
            <td width="30%" height="32">SKU</td>
        </tr>
        <?php $i = 0; ?>
        <?php while ($row_test1 = mysqli_fetch_assoc($test1) { ?>
            <tr>
                <td>
                    <?php echo $row_test1['ProductID']; ?>
                    <input
                        type="hidden"
                        name="Product[id][<?= $i; ?>][ProductID]"
                        value="<?php echo $row_test1['ProductID']; ?>"
                    />
                </td>
                <td>
                    <?php echo $row_test1['SKU']; ?>
                    <input
                        type="hidden"
                        name="Product[id][<?= $i; ?>][SKU]"
                        value="<?php echo $row_test1['SKU']; ?>"
                    />
                </td>
            </tr>
        <?php $i++; ?>
        <?php } ?>
    </table>

    <input type="submit" value="Update" name="Facturar">
</form>

Note that I have put a $i = 0 at the start of the loop, and $i++ at the end of the loop.

Additionally, I have changed the names to the following:

name="Product[id][<?= $i; ?>][SKU]"

Which will prevent the issue you were having in the comment section regarding an ill-formed array.

edited May 8, 2019 at 17:42

answered May 8, 2019 at 16:37

HarryTheWulf

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2 Comments

Javier Joasimar Palos Flores Over a year ago

i just doing but i get this result {"id":[{"ProductID":"137","SKU":"VO007BI"]} but i done get all the array

HarryTheWulf Over a year ago

@JavierJoasimarPalosFlores Please see my code. I have tested this in my own environment and everything appears to be working correctly. Please make sure you copy the code exactly as it is in the answer.

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