如何在帖子上显示评论

Question

I've small blog users can add new post and others can comment on this post ( Post is working perfectly, comments is working too )

all posts is showing and all comment is showing but each Separated , how can I display it related.

function getPostInfoo(){
  if($this->num_members < 0){
    $q = "SELECT * FROM ".TBL_POSTS;
    $result = mysqli_query($this->connection, $q);
    $fields = array();

    while($fetch=mysqli_fetch_array($result)){
        echo "
        <h3>".$fetch['post']."</h3>
        <p>".$fetch['username']."</p>";
    }
    $this->num_members = mysqli_fetch_array($result);
  }
  //return
  return $fields;
}
function getComment(){

  $q = "SELECT ".TBL_POSTS.".*, ".TBL_COMMENTS.".*
         FROM ".TBL_POSTS."
         INNER JOIN ".TBL_COMMENTS." ON ".TBL_COMMENTS.".postid=".TBL_POSTS.".postid";
  $result = mysqli_query($this->connection, $q);
  /* Error occurred, return given name by default */
  if(!$result || (mysqli_num_rows($result) < 1)){
     return NULL;
  }
  $fields = array();
  while($fetch=mysqli_fetch_array($result)){
      $fields[] = "<p><a href='#'>".$fetch['username'].": </a>".$fetch['comment']."<br>
                      <small class='text-muted'>".$fetch['cmntdate']."</small>
                    </p>

      ";
   }
  /* Return result array */
  return $fields;
 }

test.php

echo "<div>";
$myList2 = $database->getPostInfoo();
if (is_array($myList2) || is_object($myList2)){
  foreach($myList2 as $arrayItem2){
    echo $arrayItem2;

  }
}else {
     echo      "No Posts yet.";
}
echo "</div>
<div>";
$myList = $database->getComment();
if (is_array($myList) || is_object($myList)){
    foreach($myList as $arrayItem){
        echo $arrayItem;
    }
}else {
   echo "No comments yet.";
}

<form method='post' action='functions.php' method='POST'>
<div class='form-group' >
    <textarea class='form-control' name = 'comment' placeholder='Write Comment'></textarea>
    <input type='hidden' name='postid' value='1'>
    <input type='hidden' name='comment_sub' value='1'>
    <input type='submit' value='Add Comment!'>
</div>
</form>

</div>";

what I need to do is to display each comments on its own post & show comment textarea on each post

Please see the image https://i.stack.imgur.com/A4D55.jpg

Answer 1

You need to be getting one post at a time and then fetch its comments.

So your test.php should look this test.php?id=post_id

Where post_id is the unique identifier of your post based on your db structure

Could be eg is 1 or 2 or if you are using auto-increment id

Then you can add the following code to at the beginning of your test.php to get the post id

$post_id = isset($_GET['id']) ? $_GET['id'] : '';

The fetch the post and it's comment from your table using the value of $post_id

Hope it helps

Answer 2

Try this function:

function getPostsInfo(){
$q = "SELECT ".TBL_POSTS.".`id`,".TBL_POSTS.".`post`, ".TBL_POSTS.".`username`, ".TBL_COMMENTS.".`username` as comment_username, ".TBL_COMMENTS.".`comment`, ".TBL_COMMENTS.".`cmntdate` 
     FROM ".TBL_POSTS."
     LEFT JOIN ".TBL_COMMENTS." ON ".TBL_COMMENTS.".postid=".TBL_POSTS.".postid";
$result = mysqli_query($this->connection, $q);
$posts = [];
while($fetch=mysqli_fetch_array($result)){
    if(isset($posts[$fetch["id"]])){
        $posts[$fetch["id"]]["comments"][] = [
            "username" => $fetch["comment_username"],
            "comment" => $fetch["comment"],
            "cmntdate" => $fetch["cmntdate"]
        ];
    }else{
        $posts[$fetch["id"]] = [
            "post" => $fetch["post"],
            "username" => $fetch["username"],
            "comments" => [[
                "username" => $fetch["comment_username"],
                "comment" => $fetch["comment"],
                "cmntdate" => $fetch["cmntdate"]
            ]]

        ];
    }
}
return $posts;

}