php - SQL查询只返回一行结果

Question

我的查询结果只得到一行。我需要得到三个结果，但它只显示一行结果。我尝试尽可能多地更改代码，但结果中显示的内容不超过一行。我的代码如下。

elseif($module=="winners")
{

         $result = mysqli_query($conn,"SELECT * FROM `contest` WHERE showresult=1");
    if (mysqli_num_rows($result) > 0) {

         $result = mysqli_query($conn,"select * FROM `contest_score` order by score desc, CAST(timequiz as DECIMAL(9,2)) ASC limit 0,3");
    if (mysqli_num_rows($result) > 0) {

    $response["scores"] = array();

    while ($row = $result->fetch_assoc()) {
            $scores = array();
            $scores["id"] = $row["id"];
            $scores["user_id"] = $row["user_id"];
            $scores["username"] = $row["username"];
            $scores["score"] = $row["score"];
            $scores["played_date"] = $row["played_date"];
            $scores["timequiz"] = $row["timequiz"];
            $user_id = $row["user_id"];
            $result = mysqli_query($conn,"SELECT user_image FROM `users` WHERE id=$user_id");
            $temp_row = mysqli_fetch_assoc($result);

            $scores["user_image"] = $temp_row["user_image"];

          array_push($response["scores"], $scores);
          }
           $response["success"] = 1;

    // echoing JSON response
    echo json_encode($response);

请检查并告诉我是否有人可以帮助我解决我的问题。

谢谢

Answer 1

这可能与此有关:您正在循环中重写您的 $result 变量。

$result = mysqli_query($conn,"从 'users' WHERE id=$user_id 中选择 user_image");