Learning PHP and MySQL
Monday, September 25, 2006
Example 12-10 The delete.php code for performing a delete
<?php require_once('db_login.php'); require_once('DB.php');
$connection = DB::connect("mysql://$db_username:$db_password@$db_host/$db_database");
if (DB::isError($connection)){
die ("Could not connect to the database: <br />". DB::errorMessage($connection));
}
$purchase_id = $_GET["purchase_id"];
$query = "DELETE FROM `purchases` WHERE `purchase_id`=$purchase_id";
$result = $connection->query($query);
if (DB::isError($result)){
die("Could not query the database: <br />".$query." ".DB::errorMessage($result));
}
?>
<html>
<head>
<title>Item deleted!</title>
<meta http-equiv="refresh" content="4; url=deletion_link.php">
</head>
<body>
Item deleted!<br />
<?php
$query = "SELECT * FROM `purchases` NATURAL JOIN `books` NATURAL JOIN `authors`";
$result = $connection->query($query);
if (DB::isError($result)){
die("Could not query the database: <br />".$query." ".DB::errorMessage($result));
}
echo '<table border="1">';
echo "<tr><th>User</th><th>Title</th><th>Pages</th>";
echo "<th>Author</th><th>Purchased</th></tr>";
while ($result_row = $result->fetchRow(DB_FETCHMODE_ASSOC)) {
echo "<tr><td>";
echo $result_row["user_id"] . '</td><td>'; echo $result_row["title"] . '</td><td>'; echo $result_row["pages"] . '</td><td>'; echo $result_row["author"] . "</td><td>";
echo $result_row["purchased"] . "</td></tr>";
}
echo "</table>";
$connection->disconnect();
?>
</body>
</html>
Posted by krautgrrl on 09/25 at 11:18 AM
Chapter 12 Code • (4) Comments • (136) Trackbacks • Permalink
Chapter 12 Code • (4) Comments • (136) Trackbacks • Permalink
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