Source code of dbUpdate1.php
<html>
<head>
<title>Updating information in a database</title>
</head>
<body>
<h2>Updating Prices</h2>
<p>Click on a price to update it</p>
<?php
// Rather than listing my MySQL password directly in this PHP
// page, I've stored it in an external file
function printCell($value) {
print "<td>$value</td>\n";
}
$allLines = file("mysql.txt");
$password = trim($allLines[0]);
$dbLink = mysql_connect("localhost", "tboegel", $password);
mysql_select_db("clearwater", $dbLink);
$query = "SELECT item_desc, inv_price, inv_id, color, inv_size "
. "FROM inventory, item "
. "WHERE inventory.item_id = item.item_id "
. "ORDER BY item_desc, color, inv_size";
$recordset = mysql_query($query, $dbLink);
print "<table border=1>";
print "<tr><th>Item</th><th>Color</th><th>Size</th><th>Price</th></tr>";
while ($row = mysql_fetch_assoc($recordset)) {
print "<tr>\n";
printCell($row['item_desc']);
printCell($row['color']);
printCell($row['inv_size']);
$url = "http://hills.ccsf.edu/~tboegel/dbUpdate2.php?inv_id="
. $row['inv_id'];
print "<td><a href='$url'>" . $row['inv_price'] . "</a></td>\n";
print "</tr>\n";
}
print "</table>";
mysql_free_result($recordset);
mysql_close($dbLink);
?>
</body>
</html>