Two articles in my php array - php

Question

I'm trying to make a webshop for an assignment and I can't figure out how to display that there are 2 of the same product in my checkout. This is my code I want to display something like: Article1 .. 2x Article2 ... 5x etc.
<?php
session_start();
//read out session with article numbers
$array = $_SESSION['mandje'];
echo '<center>';
echo '<h1> Uw mandje: </h1>';
echo '<table style="border: 2px solid black">';
//array that checks if there are two of the same article numbers
$mandje = array();
//read out array
foreach ($array as $artikel)
{
echo '</br>';
echo $artikel;
if (in_array($artikel, $mandje)){
//I need to display the article that i have multiple times here i guess
} else {
//getting the articles out of the database
require ('config.php');
$query = "SELECT * FROM mphp6_meubels WHERE artikelnr = $artikel";
$results = mysqli_query($mysqli, $query);
while($meubel = mysqli_fetch_array($results)){
$video = $meubel['naam'];
$nmr = $meubel['artikelnr'];
echo '<tr>';
echo '<td> <img src="Meubels/'.$video.'.jpg" width="150" height="150" alt="Meubel"></td>';
echo '</tr>';
}
}
//adding the article to array so i can check if there are multiple of the same articles in array
$mandje[] = $artikel;
}
echo '</table>';
echo '</center>';

Answer 1

Just group by artikelnr field.
foreach ($array as $artikel)
{
require ('config.php');
$query = "SELECT mphp6_meubels.*, count(*) as cnt FROM mphp6_meubels WHERE artikelnr = $artikel GROUP BY artikelnr";
$results = mysqli_query($mysqli, $query);
while($meubel = mysqli_fetch_array($results)){
$video = $meubel['naam'];
$nmr = $meubel['artikelnr'];
echo '<tr>';
echo '<td>' . $artikel . '</td>';
echo '<td> <img src="Meubels/'.$video.'.jpg" width="150" height="150" alt="Meubel"></td>';
echo '<td> ' . $meubel['cnt'] . '</td>';
echo '</tr>';
}
}