PHP for function get POSTED values - php

Question

I have this PHP/HTML Code:
<form method="post" action="create_quote2.php">
<table width="800" border="0" cellspacing="5" cellpadding="5">
<tr>
<td><strong>Select</strong></td>
<td><strong>Image</strong></td>
<td><strong>Name</strong></td>
<td><strong>Sale Price</strong></td>
<td><strong>Quantity</strong></td>
</tr>
<?php
$sql="SELECT * from products ";
$rs=mysql_query($sql,$conn) or die(mysql_error());
$counter=0;
while($result=mysql_fetch_array($rs))
{
$counter++;
echo '<input type="hidden" name="product'.$counter.'" value="'.$_POST["checkbox$i"].'" />';
echo '<tr>
<td><input type="checkbox" value="'.$result["sequence"].'" name="checkbox'.$counter.'" /></td>
<td>Image</td>
<td>'.$result["title"].'</td>
<td>£'.$result["saleprice"].'</td>
<td><input type="text" name="qty" id="qty" size="20" /></td>
</tr>';
}
echo '<input type="hidden" name="counter" value="'.$counter.'" />';
?>
</table>
<input type="submit" name="submit" value="Next" />
</form>
so when boxes are checked you go to the next page with this code:
<table width="800" border="0" cellspacing="5" cellpadding="5">
<tr>
<td><strong>Image</strong></td>
<td><strong>Title</strong></td>
<td><strong>Sale Price</strong></td>
<td><strong>Trade Price</strong></td>
<td><strong>Quantity</strong></td>
<td><strong>Total Cost</strong></td>
</tr>
<?php
for($i=1; $i<=$_POST["counter"]; $i++)
{
if($_POST["checkbox$i"])
{
$counter++;
$sql="SELECT * from products where sequence = '".$i."' ";
$rs=mysql_query($sql,$conn) or die(mysql_error());
$result=mysql_fetch_array($rs);
echo '<tr>
<td>Image</td>
<td>'.$result["title"].'</td>
<td>£'.$result["saleprice"].'</td>
<td>£'.$result["tradeprice"].'</td>
<td> </td>
<td> </td>
</tr>';
}
}
?>
</table>
it works fine and selects all the correct products from the products table but i need a way to get the posted quantity values for each row.
how can i display the posted quantity values on the second page?
P.S. im not worried about SQL injection on this code...

Answer 1

Use <input type="text" name="qty'.$counter.'" id="qty'.$counter.'" size="20" /> on the first page
Then $_POST["qty{$counter}"] or $_POST['qty'.$i] in the relevant cell
As a side note, you may find it easier to use a HEREDOC structure so that you don't have to keep on adding quote marks to echo stuff:
echo <<<BLOCK
<tr>
<td>Image</td>
<td>{$result["title"]}</td>
<td>£{$result["saleprice"]}</td>
<td>£{$result["tradeprice"]}</td>
<td>Quantity - {$_POST['qty'.$i]}</td>
<td> </td>
</tr>
BLOCK;
I found HEREDOC a great help as the quote marks don't blend into one another so much

Answer 2

To get your quantities just change:
<input type="text" name="qty" id="qty" size="20" />
to
<input type="text" name="qty'.$counter.'" id="qty" size="20" />
and then reference the same way you do for other inputs.