Making post appear Newest to Oldest on a blog page - php

Question

I have a PHP code that posts the articles I have made, but from Oldest to Newest and I need it to be Newest to Oldest, so the order is the issue
The inside of the "posts" row inside my database
This is the function I am using to put the posts in an array:
function getPublishedPosts() {
// use global $conn object in function
global $conn;
$sql = "SELECT * FROM posts WHERE published=true";
$result = mysqli_query($conn, $sql);
// fetch all posts as an associative array called $posts
$posts = mysqli_fetch_all($result, MYSQLI_ASSOC);
return $posts;
}
And this is the visual part of the code:
<?php foreach ($posts as $post): ?>
<div class="post" style="margin-left: 0px;">
<img src="<?php echo BASE_URL . '/static/' . $post['image']; ?>" class="post_image" alt="">
<a href="single_post.php?post-slug=<?php echo $post['slug']; ?>">
<div class="post_info">
<h3><?php echo $post['title'] ?></h3>
<div class="post-body-div">
<?php echo html_entity_decode($post['body']); ?>
</div>
<div class="info">
<span><?php echo date("F j, Y ", strtotime($post["created_at"])); ?></span>
</div>
</div>
</a>
</div>
<?php endforeach ?>

Answer 1

just use SQL query to order by created_at.
replace your function like this.
function getPublishedPosts() {
// use global $conn object in function
global $conn;
$sql = "SELECT * FROM posts WHERE published=true order by created_at desc";
$result = mysqli_query($conn, $sql);
// fetch all posts as an associative array called $posts
$posts = mysqli_fetch_all($result, MYSQLI_ASSOC);
return $posts;
}

Answer 2

You could just reverse the array holding your posts using array_reverse
<?php foreach (array_reverse($posts) as $post): ?>
http://docs.php.net/manual/da/function.array-reverse.php
(Better would be of course ordering the SQL using ORDER BY, but we need more information about the available database fields.)