PHP-MySQL-Blog-Website-with-Admin-Panel/category-posts.php

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

//fetch posts if id is set
if(isset($_GET['id'])){
    $id=filter_var($_GET['id'], FILTER_SANITIZE_NUMBER_INT);
    $query= "SELECT * FROM posts WHERE category_id=$id ORDER BY date_time DESC";
    $posts=mysqli_query($connection,$query);
}else{
    header('location: ' . ROOT_URL . 'blog.php');
}


?>


<header class="category__title">
  
    <?php
            
                $category_query="SELECT * FROM categories WHERE id=$id";
                $category_result=mysqli_query($connection,$category_query);
                $category=mysqli_fetch_assoc($category_result); 
    ?>
    <h2><?= $category['title'] ?></h2>
</header>


<?php if ((mysqli_num_rows($posts)) > 0) : ?>
<section class="posts">

    <div class="container posts__container">
    <?php while ($post=mysqli_fetch_assoc($posts)) :?>
            <article class="post">
                <div class="post__thumbnail">
                    <img src="./images/<?=$post['thumbnail']?>" >
                </div>
                <div class="post__info">
                <?php


                $author_id=$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);
                            
                ?>
                    <h3 class="post__title"><a href="post.php?id=<?=$post["id"]?>" >
                        <?=$post['title']?>
                    </a></h3>
                    <p class="post__body">
                    <?= substr($post['body'],0,150) ?>...                    
                    </p>
                    <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>

            </article>
            <?php endwhile ?>

       

    </div>

</section>
<?php else : ?>
    <div class="alert__message error lg">
        <p>
            No posts found for this category
        </p>
    </div>
<?php endif ?>
<!--=====================================================================
==========================END OF THE POSTS===============================
=================================================================== -->
<section class="category__buttons">
    <div class="container category__buttons-container">
        <?php 
        $all_categories_query="SELECT * FROM categories ";
        $all_categories_result=mysqli_query($connection,$all_categories_query);

        ?>
        <?php while ( $category=mysqli_fetch_assoc($all_categories_result) ) : ?>
        <a href="<?=ROOT_URL?>category-posts.php?id=<?=$category['id']?>" class="category__button"><?=$category['title']?></a>
        <?php endwhile?>
    </div>
  </section>
<!--=======================END OF CATEGORY ===================================-->


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