Question

使用下面的脚本根据帖子ID显示用户的帖子及其评论。

我遇到的问题是假设在一个id为1的帖子中，该帖子有大约69个帖子ID的评论。而不是显示属于该帖子ID的69条评论的脚本，它只会为每个帖子显示一条评论。有人可以帮我解决这个问题。 我还附上了显示帖子和评论的屏幕截图。它显示每个帖子的总评论，但每个帖子只显示一条评论文本/信息

下面是代码

include "config.php";

$data = json_decode(file_get_contents("php://input"));

$request = $data->request;
$userid = 5;

// Get all posts list and like unlike
if($request == 1){

    $response_arr = array();

    $query = "SELECT * FROM posts11";
    $result = mysqli_query($con,$query);

    while($row = mysqli_fetch_array($result)){
        $postid = $row['id'];
        $title = $row['title'];
        $content = $row['content'];
        $type = -1;


        $comment_query = "SELECT COUNT(*) AS cntComment, username as usern,comment as p_com FROM post_comment WHERE  type=1  and postid=".$postid;
        $comment_result = mysqli_query($con,$comment_query);
        $comment_row = mysqli_fetch_array($comment_result);

        $total_comment = $comment_row['cntComment'];

        $usern = $comment_row['usern'];
        $pcom = $comment_row['p_com'];



$response_arr[] = array("id" => $postid, "title" => $title, "content" => $content, "type" => $type, "count_comment" => $total_comment,"usern"=>$usern,"pcom"=>$pcom);
    }

    echo json_encode($response_arr);
    exit;
}

下面的

是angularjs的前端

<!doctype html>
<html>
    <head>

        <link href="style.css" type="text/css" rel="stylesheet" />

    </head>
    <body ng-app='myapp'>
        <div class="content" ng-controller='fetchCtrl' >

<h2>show posts</h2>
            <div class="post" ng-repeat='post in posts'>
                <h1 >{{ post.title }}</h1>
                <div class="post-text">
                    {{ post.content }}
                </div>
<div>
<h2>show comments</h2>

<b>Name:</b>{{ post.usern}}  <b>comments</b>: {{ post.pcom}}<br>

({{ post.count_comment}} comments)

</div>
            </div>

        </div>

        <!-- Script -->
        <script src="angular.min.js"></script>
        <script>
        var fetch = angular.module('myapp', []);
        fetch.controller('fetchCtrl', ['$scope', '$http', function ($scope, $http) {

                // Fetch post data
                $scope.getPosts = function(){

                    $http({
                        method: 'post',
                        url: 'likeunlike.php',
                        data: {request: 1}
                    }).then(function successCallback(response) {

                        $scope.posts = response.data;
                    });

                }

                $scope.getPosts(); // Fetch post data

            }
        ]);

        </script>
    </body>
</html>

Answer 1

您只在$comment_query中执行查询后才获取第一个结果。也许您忘了将获取放入循环（类似于第一个循环）。

此外，由于我们将使用内部循环，我们应该使用嵌套数组，以便每个注释都不会重复帖子及其内容。

这段代码应如下所示：

while($row = mysqli_fetch_array($result)) {
    $postid = $row['id'];
    $title = $row['title'];
    $content = $row['content'];
    $type = -1;

    $post_arr = array(
        "id" => $postid,
        "title" => $title,
        "content" => $content,
        "comments" => array()
    );

    $comment_query = "SELECT username as usern,comment as p_com FROM post_comment WHERE  type=1  and postid=".$postid;
    $comment_result = mysqli_query($con,$comment_query);

    while ($comment_row = mysqli_fetch_array($comment_result)) {
        $total_comment = $comment_row['cntComment'];

        $usern = $comment_row['usern'];
        $pcom = $comment_row['p_com'];

        $post_arr["comments"][] = array(
            "type" => $type,
            "usern" => $usern,
            "pcom" => $pcom
        );
    }
}

此外，您还需要修改前端代码才能使用ng-repeat。可以找到示例here。请注意，由于我们可以简单地计算前端上的注释数量，因此我们从后端PHP代码中删除了SELECT COUNT(*)。

<div ng-repeat="comment in post.comments">
    <b>Name:</b>{{ comment.usern }}
    <b>comments</b>: {{ comment.pcom }}<br>
</div>

({{ post.comments.length }} comments)

使用angularjs php

1 个答案: