参考：使用MySQL扩展的完美代码示例是什么？[关闭]

我的刺。试图使其尽可能简单，同时仍保留一些实际的便利。

处理unipre并使用松散比较来提高可读性。对人好点 ;-）

<?phpheader('Content-type: text/html; charset=utf-8');error_reporting(E_ALL | E_STRICT);ini_set('display_errors', 1);// display_errors can be changed to 0 in production mode to// suppress PHP's error messages$config = array(    'host' => '127.0.0.1',     'user' => 'my_user',     'pass' => 'my_pass',     'db' => 'my_database');# Connect and disable mysql error output$connection = @mysql_connect($config['host'],     $config['user'], $config['pass']);if (!$connection) {    trigger_error('Unable to connect to database: '         . mysql_error(), E_USER_ERROR);}if (!mysql_select_db($config['db'])) {    trigger_error('Unable to select db: ' . mysql_error(),         E_USER_ERROR);}if (!mysql_set_charset('utf8')) {    trigger_error('Unable to set charset for db connection: '         . mysql_error(), E_USER_ERROR);}$result = mysql_query(    'UPDATE tablename SET name = "'     . mysql_real_escape_string($_POST['name'])     . '" WHERe id = "'     . mysql_real_escape_string($_POST['id']) . '"');if ($result) {    echo htmlentities($_POST['name'], ENT_COMPAT, 'utf-8')         . ' updated.';} else {    trigger_error('Unable to update db: '         . mysql_error(), E_USER_ERROR);}