php开发API接口的代码案例

 0) {
            exit(json_encode(1)); //返回1表示注册失败
        } else {

            $addsql = "insert into `member` (username,password,email) values ('$username','$password','$email')";
            mysql_query($addsql);
            exit(json_encode(0)); //返回0表示注册成功
        }
        break;


    //查询用户信息
    case"selectuserinfo";
        $username = lib_replace_end_tag($_GET['username']);
        $sql = "select id,username,nickname,mobile from `member` where username='$username'";
        $query = mysql_query($sql, $conn);
        $row = mysql_fetch_array($query);
        foreach ($row as $key => $v) {
            $res[$key] = urlencode($v);
        }
        exit(json_encode($res));
        break;


    //会员登录
    case"userlogin";
        $username = lib_replace_end_tag($_GET['username']);
        $password2 = lib_replace_end_tag(trim($_GET['userpassword']));
        $password = md5("$password2" . ALL_PS);
        $sqluser = "select id,username,password from `member` where username='" . $username . "' and password='" . $password . "'";
        $queryuser = mysql_query($sqluser);
        $rowuser = mysql_fetch_array($queryuser);
        if ($rowuser && is_array($rowuser) && !empty($rowuser)) {
            if ($rowuser['username'] == $username && $rowuser['password'] == $password) {
                if ($rowuser['password'] == $password) {
                    $res = urlencode("登录成功");
                    exit(json_encode($res));
                } else {
                    $res = urlencode("密码错误");
                    exit(json_encode($res));
                }
            } else {
                $res = urlencode("用户名不存在");
                exit(json_encode($res));
            }
        } else {
            $res = urlencode("用户名密码错误");
            exit(json_encode($res));
        }
        /*
         * 0：表示登录成功，1：表示密码错误，2：用户名不存在，3：用户名密码错误
         */
        break;

    default:
        exit(json_encode(error));
}
?>

### 客户端例子：