Need to send an array in PHP - 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"}]}

Answer 1

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.