path problem for add to cart button

[desmond_ckl]

Hi there, i follow a tutorial from www.phpwebcommerce.com and i'm having path problem for 'add to cart' button.

 

Demo from phpwebcommerce: http://www.phpwebcommerce.com/plaincart/index.php

I have modified some changes, i'm putting the 'add to cart' button to 1st level instead of 2nd level. Example, under all category (car & manga) i choose car, then inside car category list there is a 'add to cart' button under all car product  instead of clicking inside and show 'add to cart' button.

 

productDetail.php:

<?php
if (!defined('WEB_ROOT')) {
exit;
}

$product = getProductDetail($pdId, $catId);

// we have $pd_name, $pd_price, $pd_description, $pd_image, $cart_url
extract($product);
?> 
<table width="100%" border="0" cellspacing="0" cellpadding="10">
<tr> 
  <td align="center"><img src="<?php echo $pd_image; ?>" border="0" alt="<?php echo $pd_name; ?>" width="230" height="170"></td>
  <td valign="middle">
<strong><?php echo $pd_name; ?></strong><br>
Price : <?php echo displayAmount($pd_price); ?><br>
<?php
// if we still have this product in stock
// show the 'Add to cart' button
if ($pd_qty > 0) {
?>
<input type="button" name="btnAddToCart" value="Add To Cart >" onClick="window.location.href='<?php echo $cart_url; ?>';" class="addToCartButton">
<?php
} else {
echo 'Out Of Stock';
}
?>
  </td>
</tr>
<tr align="left"> 
  <td colspan="2"><?php echo $pd_description; ?></td>
</tr>
</table>

 

I copy this code out from productDetail.php:

<input type="button" name="btnAddToCart" value="Add To Cart >" onClick="window.location.href='<?php echo $cart_url; ?>';">

 

 

productList.php:

<?php
if (!defined('WEB_ROOT')) {
exit;
}

$productsPerRow = 2;
$productsPerPage = 8;

//$productList    = getProductList($catId);
$children = array_merge(array($catId), getChildCategories(NULL, $catId));
$children = ' (' . implode(', ', $children) . ')';

$sql = "SELECT pd_id, pd_name, pd_price, pd_thumbnail, pd_qty, c.cat_id
	FROM tbl_product pd, tbl_category c
	WHERE pd.cat_id = c.cat_id AND pd.cat_id IN $children 
	ORDER BY pd_name";
$result     = dbQuery(getPagingQuery($sql, $productsPerPage));
$pagingLink = getPagingLink($sql, $productsPerPage, "c=$catId");
$numProduct = dbNumRows($result);

// the product images are arranged in a table. to make sure
// each image gets equal space set the cell width here
$columnWidth = (int)(100 / $productsPerRow);
?>
<table width="100%" border="0" cellspacing="0" cellpadding="20">

<?php 
if ($numProduct > 0 ) {

$i = 0;
while ($row = dbFetchAssoc($result)) {

	extract($row);
	if ($pd_thumbnail) {
		$pd_thumbnail = WEB_ROOT . 'images/product/' . $pd_thumbnail;
	} else {
		$pd_thumbnail = WEB_ROOT . 'images/no-image-small.png';
	}

	if ($i % $productsPerRow == 0) {
		echo '<tr>';
	}

	// format how we display the price
	$pd_price = displayAmount($pd_price);

	echo "<td width=\"$columnWidth%\" align=\"center\"><a href=\"" . $_SERVER['PHP_SELF'] . "?c=$catId&p=$pd_id" . "\"><img src=\"$pd_thumbnail\" border=\"0\" width=\"230\" height=\"170\"><br>$pd_name</a><br>Price : $pd_price<br>
	<input type=\"button\" name=\"btnAddToCart\" value=\"Add To Cart >\" onClick=\"window.location.href='<?php echo $cart_url; ?>';\" >";

        

	// if the product is no longer in stock, tell the customer
	if ($pd_qty <= 0) {
		echo "<br>Out Of Stock";
	}

	echo "</td>\r\n";

	if ($i % $productsPerRow == $productsPerRow - 1) {
		echo '</tr>';
	}

	$i += 1;
}

if ($i % $productsPerRow > 0) {
	echo '<td colspan="' . ($productsPerRow - ($i % $productsPerRow)) . '"> </td>';
}

} else {
?>
<tr><td width="100%" align="center" valign="center">No products in this category</td></tr>
<?php	
}	
?>
</table>
<p align="center"><?php echo $pagingLink; ?></p>

 

The code i copy from productDetail.php i paste in productList.php at line48, it show the 'add to cart' button but when i click on it, it cant add to my shopping cart and it show error:

 

Notice: Undefined variable: cart_url in C:\Domains\xxxxxxxx\wwwroot\xxxxxxxx\plaincart\include\productList.php on line 48

Notice: Undefined variable: cart_url in C:\Domains\xxxxxxxx\wwwroot\xxxxxxxx\plaincart\include\productList.php on line 48

Notice: Undefined variable: cart_url in C:\Domains\xxxxxxxx\wwwroot\xxxxxxxx\plaincart\include\productList.php on line 48

Notice: Undefined variable: cart_url in C:\Domains\xxxxxxxx\wwwroot\xxxxxxxx\plaincart\include\productList.php on line 48

 

Will Appreciate For Any Help....Thank you in advanced & sorry for the bad English.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[Nodral]

That's not an error.

 

It's a NOTICE.  All it's telling you is you're using variables which are previously undeclared.

 

In PHP it's good practice to declare all variables before use, but not totally essential.