PHPの基礎(2)

$db_server = mysql_connect($db_hostname, $db_username, $db_password);if(!$db_server) die('Unable to connect to MySQL: '. mysql_error());

mysql_select_db($db_database) or die('Unable to select database: ' . mysql_error());

$query = 'SELECT * FROM book';$result = mysql_query($query);if(!$result) die('Database access failed: ' . mysql_error());$rows = mysql_num_rows($result);for($j = 0; $j < $rows; ++$j){    $row = mysql_fetch_row($result);    echo 'Author: ' . $row[0] . '<br>';    echo 'Title: ' . $row[1] . '<br>';}