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$conn = mysqli_connect("127.0.0.1", "www_cdcjbn_com","woshi67#@!","testinfo");//连接MYSQL数据库 $sql = "SELECT id,username,password FROM datatest WHERE username='{$name}'";//响应请求 $result = mysqli_query($conn, $sql);//执行 if (mysqli_num_rows($result) > 0) {// 输出小程序数组 while($row = mysqli_fetch_assoc($result)) { echo json_encode($row);//将请求结果转换为json格式 } }