Question

Ive got to make a web-based checkout for an assignment and have come across a problem, ive imported a database and set up the data in a table with added check boxes alongside it. I need to take the reference number (stored first in the array) onto another page using sessions. From using var_dump i cant seem to get anything from the selected from the table.
Code:

Button code

<p><tr>
<input type="submit" name="Select" id="Select" value="Add Selected To Cart"/>  
</tr></p>

Access database code(values changed for saftey)

<?php
Accesses database
$con=pg_connect("host=hostname port=portnumbers
    dbname=name user=user password=password");
    if (!$con)
    {
        die('Could not connect to database');
    }
?>

Database display

//Creates table
echo "<table border='1'>\n<thead>\n<tr>\n";
echo "<th>Title</th>
<th>Platform</th>
<th>Description</th>
<th>Price</th>
<th>Buy</th>\n";

while($row = pg_fetch_array($res)){
echo"<tr>";
echo "<td>" . $row['1'] . "</td>";
echo "<td>" . $row['2'] . "</td>";
echo "<td>" . $row['3'] . "</td>";
echo "<td>" . $row['4'] . "</td>";
echo '<td><input type="checkbox" name="selected[]" value="' . $row['0'] .  '" /></td>';      
  echo"</tr>";    
  }

echo"</table>";
?>

Answer 1

Well, I think you can as follow because you are trying to improve a shopping car:

//Use the `$_SESSION` var to hold the values
foreach ($_POST['selected'] as $item)
    $_SESSION['cart'][$item] = $item; 

As the item’s id will be indexed, each time a submit is performed:

• If the item exists, will be replaced
• If the item does not exist, will be added

In order to remove items, you should use a “view cart” page and then show the items:

foreach ($_SESSION['cart'] as $item)
    echo '<a href="delete-item?id=' . $item . '">' . $item . '</a>';