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PODisabling checkout button from shopping cart - php
 

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  1. PODisabling checkout button from shopping cart - php
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    <p>I am trying to setup a “view shopping cart/basket” page within a site in which logged in users earn points/credits. Once they earn a certain amount of these points they can then go to a shopping cart and pay with these points only. (No money changes hands, so no paypal/checkout/shipping/taxes etc are involved)</p> <p><p>So far I have got the login, points total table, add product to cart and change of quantity feature to work.<br/></p> <p>What I am trying to do on this ‘view_cart.php’ page (code below) is to make the ‘Checkout’ link (submit_cart.php) disappear or be disabled if the user's points total is less than the total shopping cart price. Is there anyway I can do this on this script? The ‘You don’t have enough points to proceed to checkout’ prompt works if this is the case but if I can this checkout link to disappear that would be great.</p> <p>My php knowledge is limited as I’m more of a front end designer but please feel free to offer any suggestions or changes of approach. Thanks!</p> <pre><code>&lt;?php $page_title = 'Your Rewards Shopping Cart'; include ('./includes/header.html'); if (!isset($_SESSION['users_id'])) { $url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']); if ((substr($url, -1) == '/') OR (substr($url, -1) == '\\') ) { $url = substr ($url, 0, -1); } $url .= '/login.php'; ob_end_clean(); // Delete the buffer. header("Location: $url"); exit(); // Quit the script. } $rwp = $_SESSION['reward_user_points']; $problem = FALSE; if (isset($_POST['submitted'])) { foreach ($_POST['qty'] as $k =&gt; $v) { $pid = (int) $k; $qty = (int) $v; if ( $qty == 0 ) { unset ($_SESSION['cart'][$pid]); } elseif ( $qty &gt; 0 ) { $_SESSION['cart'][$pid] ['quantity'] = $qty; } } // End of FOREACH. } // End of SUBMITTED IF. $empty = TRUE; if (isset ($_SESSION['cart'])) { foreach ($_SESSION['cart'] as $key =&gt;$value) { if (isset($value)) { $empty = FALSE; break; // Leave the loop. } } // End of FOREACH. } // End of ISSET IF. if (!$empty) { require_once ('/MySQL/database.php'); $query = "SELECT users_id, reward_user_points FROM reward_points WHERE reward_points.users_id = users.users_id"; $result = mysql_query($query); $query = "SELECT products_id, products_name FROM categories, products WHERE categories.categories_id = products.categories_id AND products.products_id IN (";foreach ($_SESSION['cart'] as $pid =&gt;$value) { $query .= $pid . ','; } $query = substr ($query, 0, -1) . ') ORDER BY categories.categories_name ASC'; $result = mysql_query($query); ?&gt; &lt;h1&gt;Your Shopping Cart&lt;/h1&gt; &lt;div id="sidebar"&gt; &lt;div id="statusbar"&gt; &lt;p&gt;&lt;span class="statusbar_highlight"&gt;Name:&lt;/span&gt;&lt;br /&gt; &lt;?php echo " {$_SESSION['users_first_name']} " . " {$_SESSION['users_surname']}&lt;br&gt; ";?&gt;&lt;/p&gt; &lt;p&gt;&lt;span class="statusbar_highlight"&gt;Outlet:&lt;/span&gt;&lt;br /&gt; &lt;?php echo " {$_SESSION['users_outlet']} ";?&gt;&lt;/p&gt; &lt;p&gt;&lt;span class="statusbar_highlight"&gt;Sales Number:&lt;/span&gt;&lt;br /&gt; &lt;?php echo " {$_SESSION['users_sales_no']} ";?&gt;&lt;/p&gt; &lt;p&gt;&lt;span class="statusbar_highlight"&gt;My Points:&lt;/span&gt;&lt;br /&gt; &lt;font size="+1"&gt;&lt;?php echo " {$_SESSION['reward_user_points']} ";?&gt;&lt;/font&gt;&lt;/p&gt; &lt;/div&gt; &lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt; &lt;/div&gt; &lt;div id="maincontent_inner"&gt; &lt;div id="maincontent_inner2"&gt; &lt;?php echo '&lt;table border="0" width="100%" cellspacing="1" cellpadding="5" align="center"&gt; &lt;tr class="top"&gt; &lt;td align="left" width="46%"&gt;&lt;b&gt;Reward Product&lt;/b&gt;&lt;/td&gt; &lt;td align="right" width="18%"&gt;&lt;b&gt;Price&lt;/b&gt;&lt;/td&gt; &lt;td align="center" width="16%"&gt;&lt;b&gt;Qty&lt;/b&gt;&lt;/td&gt; &lt;td align="right" width="20%"&gt;&lt;b&gt;Sub Total&lt;/b&gt;&lt;/td&gt; &lt;/tr&gt; &lt;form action="view_cart.php" method="post"&gt;'; $total = 0; // Total cost of the order. while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) { // Total and subtotals. $subtotal = $_SESSION['cart'][$row ['products_id']]['quantity'] * $_SESSION['cart'][$row ['products_id']]['price']; $total += $subtotal; if ($rwp &gt;= $total) { } else { echo "You do not have enought points to proceed to checkout &lt;br /&gt;"; } // Print the row. echo " &lt;tr&gt; &lt;td align=\"left\"&gt;{$row['products_name']}&lt;/td&gt; &lt;td align=\"right\"&gt;{$_SESSION['cart'][$row['products_id']] ['price']} pts&lt;/td&gt; &lt;td align=\"center\"&gt;&lt;input type=\"text\" size=\"3\" name=\"qty[{$row['products_id']}]\" value=\"{$_SESSION['cart'][$row['products_id']]['quantity']}\" /&gt;&lt;/td&gt; &lt;td align=\"right\"&gt;" . number_format ($subtotal) . " pts&lt;/td&gt; &lt;/tr&gt;\n"; } // End of the WHILE loop. mysql_close($dbc); // Close the database connection. // products the footer, close the table, and the form. echo ' &lt;tr class="even"&gt; &lt;td colspan="3" align="right"&gt;&lt;b&gt; TOTAL:&lt;b&gt;&lt;/td&gt; &lt;td align="right"&gt;&lt;b&gt;' . number_format ($total) . ' pts &lt;/b&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;br /&gt; &lt;div align="center"&gt;&lt;input type="submit" name="submit" value="Update" /&gt; &lt;input type="hidden" name="submitted"value="TRUE" /&gt; &lt;/form&gt;&lt;br /&gt;&lt;br /&gt;&lt;/div&gt; &lt;p&gt;&lt;a href="browse_rewards.php"&gt;&lt;img src="images/but_continue.png" /&gt;&lt;/a&gt;&lt;/p&gt; &lt;p&gt;&lt;a href="submit_cart.php"&gt;&lt;img src="images/but_checkout.png" /&gt;&lt;/a&gt;&lt;/p&gt;'; } else { echo '&lt;h1&gt;Shopping Cart&lt;/h1&gt;&lt;p&gt;Your cart is currently empty.&lt;/p&gt; &lt;p&gt;&lt;a href="browse_rewards.php"&gt;&lt;img src="images/but_continue.png" /&gt;&lt;/a&gt;&lt;/p&gt; &lt;div id="maincontent_inner"&gt; &lt;div id="maincontent_inner2"&gt; '; } ?&gt; &lt;br /&gt; &lt;p&gt; &lt;span class="extras"&gt;&lt;strong&gt;Please Note the following:&lt;/strong&gt;&lt;br /&gt; 1. To delete any item off your cart, simply type in '0' and click 'Update'&lt;br /&gt; 2. To add in more than one item, simply click the desired amount and click 'Update'&lt;br /&gt; 3. Your cart will be emptied upon logging out of your session&lt;br /&gt; &lt;/span&gt;&lt;/p&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;?php include ('./includes/footer.html'); ?&gt; </code></pre>
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