app-for PHP to do the app interface the entire communication process

App Interface PHP Data

Ask how to do the steps what are the files

  header (' Content-type:application/json; Charset=utf-8 '); require ' conn.php ';//Read Data $sql_notice = mysql_query (' SELECT id,user_name from Yxd_user limit 0,4 ');//$  Data[] = mysql_fetch_array ($sql _notice,mysql_assoc); First row//print all row array data while ($data [] = mysql_fetch_array ($sql _notice,mysql_assoc)) {$data;}
 Var_dump ($data); echo "
";  

  class response{/** * Encapsulates the communication method by JSON * @param integer $code status code * @ param string $message message * @param array $data data */public static function json ($code, $message = ', $data =array ()        ) {if (!is_numeric ($code) | |!is_array ($DATA)) {return '; } $result = Array (' code ' = = $code, ' message ' = $message, ' data ' = $dat    A) echo Json_encode ($result); }}  

Now write these two but don't know what to do

