To display output from mysql using PHP (json encode) - php

Question

I'm trying to code a page like facebook-view_posts_page where I need to show the result as POST 1..Comment 1.. Comment 2.. POST 2.. Comment 3
The output of my code is
POST 1
POST 2
comment 1
comment 2
comment 3
How should I re write my code?
<?php
include("connect.php");
$userID=$_REQUEST['userID'];
$Query=("select * from tb_post where userID='$userID'");
$result=mysql_query($Query);
$count=mysql_num_rows($result);
if($count>0)
{
//$post['result']="sucess";
$joinQuery=("select * from tb_post where tb_post.userID='$userID'");
$joinResult=mysql_query($joinQuery);
while($row=mysql_fetch_assoc($joinResult))
{
$posts[]=$row;
$postid=$row['postID'];
$commentQuery=("select tb_comment.commentID,tb_comment.userID ,tb_comment.postID ,tb_comment.comment ,tb_comment.date,signup.userName,signup.image from tb_comment,signup where tb_comment.postID='$postid' and signup.userID=tb_comment.userID");
$commentResult=mysql_query($commentQuery);
//$post['posts']=$posts;
while($commentrow=mysql_fetch_assoc($commentResult))
{
$comments[]=$commentrow;
}
}
$post=array("result"=>"success","posts"=>$posts,"comments"=>$comments);
}
else
{
$post['result']="failed";
$post['error']="no data found";
}
$data='content-type:application/json';
$data=json_encode($post);
echo $data;
?>

Answer 1

I will explain you the approach.
You are fetching and appending comments in an array without any direct key reference to the post.
array comments;
while (comment = fetch comments) {
comments[post id][] = comment;
}
while showing:
while (post = fetch posts) {
echo post title;
foreach (comments[post id] as postComment) {
echo postComment;
}
}
Comments should have reference to the post as key of comments array.
In your case, you are already fetching comments correctly, just change the following inner while loop to:
while($commentrow=mysql_fetch_assoc($commentResult)) {
$comments[$commentrow['postID'][]=$commentrow; // Observe postID
}
Fully working code:
<?php
include("connect.php");
$userID=$_REQUEST['userID'];
$Query=("select * from tb_post where userID='$userID'");
$result=mysql_query($Query);
$count=mysql_num_rows($result);
if($count>0) {
$joinQuery=("select * from tb_post where tb_post.userID='$userID'");
$joinResult=mysql_query($joinQuery);
while($row=mysql_fetch_assoc($joinResult)) {
$posts[]=$row;
$postid=$row['postID'];
$commentQuery=("select tb_comment.commentID,tb_comment.userID ,tb_comment.postID ,
tb_comment.comment ,tb_comment.date,signup.userName,signup.image
from tb_comment,signup
where tb_comment.postID='$postid' and signup.userID=tb_comment.userID");
$commentResult=mysql_query($commentQuery);
while($commentrow=mysql_fetch_assoc($commentResult)) {
$comments[$commentrow['postID']][] = $commentrow;
}
}
$post=array("result"=>"success","posts"=>$posts,"comments"=>$comments);
}
else {
$post['result']="failed";
$post['error']="no data found";
}
$data='content-type:application/json';
$data=json_encode($post);
echo $data;
?>
You can print posts and its comments like this:
<?php
if (! empty($posts)) {
foreach ($posts as $post) {
echo $post['post_title_field'] . "<br/>";
if (! empty($comments[$post['postID']])) {
foreach ($comments[$post['postID']] as $postComment) {
echo postComment . "<br/>";
}
}
}
}
?>

Answer 2

Thanks everyone for helping me.My friend came up with another solution, which is the code I'm looking for.And here is the code:
<?php
include("connect.php");
$sel_post=mysql_query("SELECT * FROM tb_post WHERE userID='".$_REQUEST['userID']."'");
if(mysql_num_rows($sel_post)>0)
{
while($row=mysql_fetch_assoc($sel_post))
{
$sel_post_owner=mysql_query("SELECT name,image FROM signup WHERE userID='".$row['userID']."'");
if(mysql_num_rows($sel_post_owner)>0)
{
while($row_owner=mysql_fetch_array($sel_post_owner))
{
$row['post_owner_name']=$row_owner['name'];
$row['post_owner_image']=$row_owner['image'];
}
}
else
{
$row['post_owner_name']="";
$row['post_owner_image']="";
}
$sel_comments=mysql_query("SELECT * FROM tb_comment WHERE postID='".$row['postID']."'");
if(mysql_num_rows($sel_comments)>0)
{
$comments=array();
while($row_comment=mysql_fetch_assoc($sel_comments))
{
$sel_comment_owner=mysql_query("SELECT name,image FROM signup WHERE userID='".$row_comment['userID']."'");
if(mysql_num_rows($sel_post_owner)>0)
{
while($row_comment_owner=mysql_fetch_array($sel_comment_owner))
{
$row_comment['comment_owner_name']=$row_comment_owner['name'];
$row_comment['comment_owner_image']=$row_comment_owner['image'];
}
}
else
{
$row_comment['comment_owner_name']="";
$row_comment['comment_owner_image']="";
}
$comments[]=$row_comment;
}
$row['comments']=$comments;
}
else
{
$row['comments']=array();
}
$Post[]=$row;
}
$post=array("result"=>"success","Posts"=>$Post);
}
else
{
$post['result']="failed";
$post['error']="no data found";
}
$data='content-type:application/json';
$data=json_encode($post);
echo $data;
?>