Cart help needed

andyd34 · March 18, 2008, 11:57am

I am working on a shopping cart with PayPal but im having some trouble

I have a function

function showCart() {
	global $db;
	$cart = $_SESSION['cart'];
	if ($cart) {
		$items = explode(',',$cart);
		$contents = array();
		foreach ($items as $item) {
			$contents[$item] = (isset($contents[$item])) ? $contents[$item] + 1 : 1;
		}
		$output[] = '<form name="PayPal" method="post" action="https://www.paypal.com/cgi-bin/webscr">';					
		$output[] = '<input type="hidden" name="cmd" value="_cart">';
		$output[] = '<input type="hidden" name="business" value="[email protected]">';
		$output[] = '<input type="hidden" name="upload" value="1">';
		$output[] = '<input type="hidden" name="currency_code" value="GBP">';
		$output[] = '<input type="hidden" name="page_style" value="aSweb">';
		?>
		<table cellpadding="3" cellspacing="2" bgcolor="#FFFFFF">
		  <tr bgcolor="#2F4F4F">
		    <th width="200" align="left" style="color:#FFFFFF">Description</th>
			<th width="50" align="right" style="color:#FFFFFF">Cost</th>
			<th width="75" align="right"></th>
		  </tr>
		
		<?
		
		foreach ($contents as $id=>$qty) {
			$sql = 'SELECT * FROM downloads WHERE id = '.$id;
			$result = $db->query($sql);
			$row = $result->fetch();
			extract($row);
			$output[] = '<tr bgcolor="#F0FFFF">';
			$output[] = '<td>'.$title.'</td>';
			$output[] = '<td align="right">&pound;'.$amount.'</td>';
			$total += $amount;
			$output[] = '<td align="center"><a href="cart.php?action=delete&id='.$id.'" class="r"><img src="../styles/images/delBtn.gif" alt="Remove from cart" border="0px" /></a></td>';
			$output[] = '</tr>';
			$output[] = '<input type="text" name="item_name'.$item.'" value="'.$title.'">';
			$output[] = '<input type="text" name="item_number'.$item.'" value="'.$id.'">';
			$output[] = '<input type="text" name="amount'.$item.'" value="'.$amount.'">'; 
			}
		
		$output[] = '</table>';
		$output[] = '<p>Grand total: <strong>&pound;'.$total.'</strong></p>';   
	    $output[] = '<input type="hidden" name="no_shipping" value="2">';
	    $output[] = '<input type="hidden" name="no_note" value="1">';
	    $output[] = '<input type="hidden" name="bn" value="IC_Sample">';
	    $output[] = '<input type="submit" name="submit" value="Check Out">';
		$output[] = '</form>';
	} else {
		$output[] = '<p>You shopping cart is empty.</p>';
	}
	return join('',$output);
}

This code works but when I click on the checkout button its not sending anything to paypal

When I alter

$output[] = '<input type="text" name="item_name'.$item.'" value="'.$title.'">';
$output[] = '<input type="text" name="item_number'.$item.'" value="'.$id.'">';
$output[] = '<input type="text" name="amount'.$item.'" value="'.$amount.'">';

to

for($i=1;$i < count($items);$i++) {
$output[] = '<input type="text" name="item_name'.$item.'" value="'.$title.'">';
$output[] = '<input type="text" name="item_number'.$item.'" value="'.$id.'">';
$output[] = '<input type="text" name="amount'.$item.'" value="'.$amount.'">'; 
}

Its passing information to PayPal but its multiplying the items

Anyone have any suggestions, I know there is a way round it but I cant see the wood for the trees, just need someone to point out what i’m missing

swafran · March 19, 2008, 2:31pm

You need to specify which array element you’re writing each value to. Also if you used $i < count() as your control then you probably meant to set $i=0, not $i=1. Something like:

for($i=0;$i < count($items);$i++) { $output[$i] = '<input type="text" name="item_name'.$item.'" value="'.$title.'">'; $output[$i] = '<input type="text" name="item_number'.$item.'" value="'.$id.'">'; $output[$i] = '<input type="text" name="amount'.$item.'" value="'.$amount.'">'; }

andyd34 · March 19, 2008, 4:36pm

Sorted it

$itemCount=1;
foreach ($contents as $id=>$qty) {
         $sql = 'SELECT * FROM downloads WHERE id = '.$id;
         $result = $db->query($sql);
         $row = $result->fetch();
         extract($row);
         $output[] = '<tr bgcolor="#F0FFFF">';
         $output[] = '<td>'.$title.'</td>';
         $output[] = '<td align="right">&pound;'.$amount.'</td>';
         $total += $amount;
         $output[] = '<td align="center"><a href="cart.php?action=delete&id='.$id.'" class="r"><img src="../styles/images/delBtn.gif" alt="Remove from cart" border="0px" /></a></td>';
         $output[] = '</tr>';
         $output[] = '<input type="text" name="item_name_'.$itemCount.'" value="'.$title.'">';
         $output[] = '<input type="text" name="item_number_'.$itemCount.'" value="'.$id.'">';
         $output[] = '<input type="text" name="amount_'.$itemCount.'" value="'.$amount.'">'; 
$itemCount++;
         }