这个问题在这里已经有了答案：

如何在不同的页面上获得不同的评论（1个答案）
昨天关门了。
我有一个php博客，我正在尝试添加一个评论系统。我可以让评论系统工作，但是评论会出现在博客的每一篇文章上。
我应该在哪里插入代码，使每个帖子都有其独特的评论，而不是在每个帖子上显示相同的评论？我已经试过了，但没有做对。
以下是我尊敬的代码：
comment.php

<h2><i>Drop a comment here</i></h2>
    <div class="comment-form-container">
        <form id="frm-comment">
            <div class="input-row">
                <input type="hidden" name="post_id" id="post_id" value="<?php echo $postID_id; ?>" />
                <input type="hidden" name="comment_id" id="commentId"
                    placeholder="Name" /> <input class="input-field"
                    type="text" name="name" id="name" placeholder="Name" required />
            </div>
            <div class="input-row">
                <textarea class="input-field" type="text" name="comment"
                    id="comment" placeholder="Add a Comment" required >  </textarea>
            </div>
            <div>
                <input type="button" class="btn-submit" id="submitButton"
                    value="Publish" /><div id="comment-message">Comments Added Successfully!</div>
            </div>
        </form>
    </div>
    <div id="output"></div>
    <script>
            function postReply(commentId) {
                $('#commentId').val(commentId);
                $("#name").focus();
            }
            $("#submitButton").click(function () {
                   $("#comment-message").css('display', 'none');
                var str = $("#frm-comment").serialize();
                $.ajax({
                    url: "../comments/comment-add.php",
                    data: str,
                    data: {post_id : <?php echo $postID; ?>},
                    type: 'post',
                    success: function (response)
                    {
                        var result = eval('(' + response + ')');
                        if (response)
                        {
                            $("#comment-message").css('display', 'inline-block');
                            $("#name").val("");
                            $("#comment").val("");
                            $("#commentId").val("");
                            $("#post_id").val("");
                           listComment();
                        } else
                        {
                            alert("Failed to add comments !");
                            return false;
                        }
                    }
                });
            });
            $(document).ready(function () {
                   listComment();
            });
            function listComment() {
                $.post("../comments/comment-list.php",
                        function (data) {
                               var data = JSON.parse(data);
                            var comments = "";
                            var replies = "";
                            var item = "";
                            var parent = -1;
                            var results = new Array();
                            var list = $("<ul class='outer-comment'>");
                            var item = $("<li>").html(comments);
                            for (var i = 0; (i < data.length); i++)
                            {
                                var commentId = data[i]['comment_id'];
                                parent = data[i]['parent_comment_id'];
                                if (parent == "0")
                                {
                                    comments = "<div class='comment-row'>"+
                                    "<div class='comment-info'><span class='commet-row-label'>from</span> <span class='posted-by'>" + data[i]['comment_sender_name'] + " </span> <span class='commet-row-label'>at</span> <span class='posted-at'>" + data[i]['date'] + "</span></div>" + 
                                    "<div class='comment-text'>" + data[i]['comment'] + "</div>"+
                                    "<div><a class='btn-reply' onClick='postReply(" + commentId + ")'>Reply</a></div>"+
                                    "</div>";
                                    var item = $("<li>").html(comments);
                                    list.append(item);
                                    var reply_list = $('<ul>');
                                    item.append(reply_list);
                                    listReplies(commentId, data, reply_list);
                                }
                            }
                            $("#output").html(list);
                        });
            }
            function listReplies(commentId, data, list) {
                for (var i = 0; (i < data.length); i++)
                {
                    if (commentId == data[i].parent_comment_id)
                    {
                        var comments = "<div class='comment-row'>"+
                        " <div class='comment-info'><span class='commet-row-label'>from</span> <span class='posted-by'>" + data[i]['comment_sender_name'] + " </span> <span class='commet-row-label'>at</span> <span class='posted-at'>" + data[i]['date'] + "</span></div>" + 
                        "<div class='comment-text'>" + data[i]['comment'] + "</div>"+
                        "<div><a class='btn-reply' onClick='postReply(" + data[i]['comment_id'] + ")'>Reply</a></div>"+
                        "</div>";
                        var item = $("<li>").html(comments);
                        var reply_list = $('<ul>');
                        list.append(item);
                        item.append(reply_list);
                        listReplies(data[i].comment_id, data, reply_list);
                    }
                }
            }
        </script>

comment-add.php

<?php
require_once ("db.php");
$commentId = isset($_POST['comment_id']) ? $_POST['comment_id'] : "";
$post_id = isset($_POST['post_id']) ? $_POST['post_id'] : "";
$comment = isset($_POST['comment']) ? $_POST['comment'] : "";
$commentSenderName = isset($_POST['name']) ? $_POST['name'] : "";
$date = date('Y-m-d H:i:s');
$sql = "INSERT INTO tbl_comment(parent_comment_id,post_id,comment,comment_sender_name,date) VALUES ('" . $commentId . "','" . $post_id . "','" . $comment . "','" . $commentSenderName . "','" . $date . "')";
$result = mysqli_query($conn, $sql);
if (! $result) {
    $result = mysqli_error($conn);
}
echo $result;
?>

comment-list.php

<?php
require_once ("db.php");
$qry2=mysqli_query($con,"select * from sa_posts where postID ='".$_GET['postID']."'");
$post=mysqli_fetch_array($qry2);
$sql = "SELECT * FROM tbl_comment ORDER BY parent_comment_id asc, comment_id asc";
$result = mysqli_query($conn, $sql);
$record_set = array();
while ($row = mysqli_fetch_assoc($result)) {
    array_push($record_set, $row);
}
mysqli_free_result($result);
mysqli_close($conn);
echo json_encode($record_set);
?>