PHP-MySQL-Blog-Website-with-Admin-Panel/post.php

<?php 
include 'partials/header.php';

//fetch 9post


if(isset($_GET['id'])){
    $id=filter_var($_GET['id'],FILTER_SANITIZE_NUMBER_INT);
    $query="SELECT * FROM posts WHERE id=$id";
    $result=mysqli_query($connection,$query);
    $post=mysqli_fetch_assoc($result);
    $author_id=$post['author_id'];
    $author_query="SELECT * FROM users WHERE id=$author_id";
    $author_result=mysqli_query($connection,$author_query);
    $author=mysqli_fetch_assoc($author_result);
                


}else{
    header('location: ' . ROOT_URL . 'blog.php');
    die();
}

?>



    <section class="singlepost">
        <div class="container singlepost__container">


            <h2>
                <?=$post['title']?>
            </h2>
            <div class="post__author">
                <div class="post__author-avatar">
                <img src="./images/<?= $author['avatar'] ?>">                </div>
                <div class="post__author-info">
                    <h5>By: <?= "{$author['firstname']} {$author['lastname']}" ?></h5>
                    <small>
                        <?=date("M d, Y -H:i" , strtotime($post['date_time']))?>
                    </small>
                </div>
            </div>
            <div class="singlepost__thumbnail">
                <img src="./images/<?=$post['thumbnail']?>" >
            </div>
            <p><?=$post['body']?></p>


        </div>

    </section>








    <?php
include './partials/footer.php';
?>