[SQL PHP] Order by BETWEEN $_POST

<form action="verwerken.php" method="post">
Kies een minimumprijs:
 <select>
    <option value="10" name="min">10 euro</option>
    <option value="30" name="min">30 euro</option>
    <option value="50" name="min">50 euro</option>
    <option value="100" name="min">100 euro</option>
    <option value="500" name="min">500 euro</option>
</select>

<br>Kies een maximumprijs:
 <select>
    <option value="10" name="max">10 euro</option>
    <option value="30" name="max">30 euro</option>
    <option value="50" name="max">50 euro</option>
    <option value="100" name="max">100 euro</option>
    <option value="500" name="max">500 euro</option>
</select>

<br><input type="submit" name="submit" value="Geef overzicht artikelen"><br><br>
</form>

<?php
$con=mysqli_connect("localhost","root","","mysql");
// Check connection
if (mysqli_connect_errno()) {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

$min = mysqli_real_escape_string($con, $_POST['min']);
$max = mysqli_real_escape_string($con, $_POST['max']);

$result = mysqli_query($con,"SELECT * FROM artikel
WHERE Verkoopprijs
BETWEEN $min AND $max
ORDER BY Verkoopprijs");


echo "<table border='1'>
<tr>
<th>Artikelnr</th>
<th>Verkoopprijs</th>
</tr>";

while($row = mysqli_fetch_array($result)) {
  echo "<tr>";
  echo "<td>" . $row['Artikelnr'] . "</td>";
  echo "<td>" . $row['Verkoopprijs'] . "</td>";
  echo "</tr>";
}

echo "</table>";

mysqli_close($con);
?>