PHP mySQL Sort post by date - php

Question

I'm trying to create a website where anyone can post anything to it without creating an account, long as its just text. My problem is because every time I start the website and post something. Its sent to the bottom, where oldest posts are at the top and new posts are sent to the top. I want to see the new posts on top instead. This is my first time working with PHP, mySQL and databases in general so my code might look bad. Tell me if more information / code is needed. Thank you for your time.
<?php
function setPosts($conn){
if(isset($_POST['postSubmit'])){
$pid = $_POST['pid'];
$date = $_POST['date'];
$message = $_POST['message'];
$sql= "INSERT INTO post(pid, date ,message) VALUES ('$pid', '$date', '$message');";
$result = mysqli_query($conn, $sql);
}
}
function getPosts($conn){
$sql = "SELECT * FROM post";
$result = mysqli_query($conn, $sql);
while($row = $result->fetch_assoc()){
echo "<div class='post-box'>";
echo $row['date']."<br>";
echo nl2br($row['message'])."<br><br>";
echo "</div>";
}
}

Answer 1

You need to add "ORDER BY" to your "SELECT" to sort it.
$sql = "SELECT * FROM post ORDER BY date DESC";
The "DESC" is there so that new posts will be on top. We'd use "ASC" if we wanted older posts on top.

Answer 2

You need to use ODRER BY clause like below :-
$sql = "SELECT * FROM post ORDER BY date DESC";
Reference:- ODRER BY clause
Note:- Your insersion code is wide open for SQL Injection. Use mysqli prepared statements to prevent from it.
Reference:- mysqli::prepare

Answer 3

You need to sort mysql result by date and order it in descending order.replace mysql query to this
$sql = "SELECT * FROM post SORT BY date order BY DESC";

Answer 4

function getPosts($conn){
$sql = "SELECT date,message FROM post ORDER BY date DESC";
$result = mysqli_query($conn, $sql);
while($row = $result->fetch_assoc()){
echo "<div class='post-box'>";
echo $row['date']."<br>";
echo nl2br($row['message'])."<br><br>";
echo "</div>";
}
}