title: Add items to a cart from an array
body: <p>I'm creating a php driven shopping cart as part of a task.
  All products are currently stored in an array (I'm aware they would realistically be stored in a database, however for this task it isn't required)</p>
  
  <p>I would like to know if its possible to add items to a cart from clicking a link, upon clicking proceed, it would take the user to a summary screen, displaying the cost of each item (value displayed from the array) and total cost of all items.</p>
  
  <p>I am also looking to include a promotion code input box, is it possible to calculate and display a discount on button click, E.G "Update"</p>
  
  <p>So far, I only have the products displayed in a table which is ok, the cart section is confusing me at the moment as well as the discount section.</p>
  
  <pre><code>&lt;?php
  $Item1 = array('SKU'=&gt;test1, 'name'=&gt;ProductTest1, 'Price'=&gt;10.00);
  $Item2 = array('SKU'=&gt;test2, 'name'=&gt;ProductTest2, 'Price'=&gt;11.00);
  $Item3 = array('SKU'=&gt;test3, 'name'=&gt;ProductTest3, 'Price'=&gt;12.00);
  
  ?&gt;
  
  &lt;html&gt;
  &lt;head&gt;
  &lt;link rel="stylesheet" type="text/css" href="Style.css"&gt;
  &lt;/head&gt;
  &lt;body&gt;
  &lt;div id="container"&gt;
  &lt;div id="main"&gt;
  &lt;table&gt;
  &lt;tr&gt;
  &lt;th&gt;SKU&lt;/th&gt;
  &lt;th&gt;Name&lt;/th&gt;
  &lt;th&gt;Price&lt;/th&gt;
  &lt;th&gt;Action&lt;/th&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
  &lt;td&gt;&lt;?php echo $Item1[SKU]; ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;?php echo $Item1[name]; ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;?php echo '£'. number_format($Item1[Price],2); ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;a href=#&gt;Add To Cart&lt;/a&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
  &lt;td&gt;&lt;?php echo $Item2[SKU]; ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;?php echo $Item2[name]; ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;?php echo '£'. number_format($Item2[Price],2); ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;a href=#&gt;Add To Cart&lt;/a&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
  &lt;td&gt;&lt;?php echo $Item3[SKU]; ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;?php echo $Item3[name]; ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;?php echo '£'. number_format($Item3[Price],2); ?&gt;&lt;/td&gt;
  &lt;td&gt;&lt;a href=#&gt;Add To Cart&lt;/a&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;/table&gt;
  &lt;input id="Proceed" type="Submit" value="Proceed"&gt;
  &lt;/div&gt;
  &lt;/div&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>