PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

Putting New Information in the Database
279
Listing 11.4
Continued
$query = "insert into books values
('".$isbn."', '".$author."', '".$title."', '".$price."')";
$result = $db->query($query);
if ($result) {
echo $db->affected_rows." book inserted into database.";
} else {
echo "An error has occurred. The item was not added.";
}
$db->close();
?>
The results of successfully inserting a book are shown in Figure 11.4.
Figure 11.4
The script completes successfully and reports that the book has
been added to the database.
If you look at the code for insert_book.php, you can see that much of it is similar to
the script you wrote to retrieve data from the database.You check that all the form fields
were filled in, and you format them correctly for insertion into the database (if required)
with addslashes():
if (!get_magic_quotes_gpc()) {
$isbn = addslashes($isbn);