PHP - If number is divisible by 3 and 5 then echo

Question

I'm new to PHP and trying to create the following whilst minimizing the amount of code needed. PHP should show a list of 100 then display if the number is / by 3, 5 or 3 and 5. If not by any then show nothing.

This is what I've got so far, but any help would be great since not sure about the / by 3 and 5 bit as you can see below.

<?php $var = range(0, 100); ?>
  <table>
<?php foreach ($var as &$number) {
 echo " <tr>
    <td>$number</td>
    <td>";

    if($number % 3 == 0)  {
    echo "BY3";
} elseif ($number % 5 == 0) {
    echo "BY5";
} elseif ($number % 3 and 5 == 0) {
        echo "BY3 AND 5";
}
 echo "</td></tr>";
}
?>

  </table>

Thanks

Answer 1

Nope... you should check first if it's divisble for 15 (3x5) (or 3 and 5) and after you can do other checks:

if($number % 15 == 0)  {
    echo "BY3 AND 5";
} elseif ($number % 5 == 0) {
    echo "BY5";
} elseif ($number % 3 == 0) {
    echo "BY3";
}
 echo "</td></tr>";

?>

Because every number divisble for 15 is also divisble for 3 and 5. So your last check could never hit

Answer 2

if I'm reading your question correct then you are looking for :

if ($number % 3 == 0 && $number %5 == 0) {
        echo "BY3 AND 5";
} elseif ($number % 3 == 0)  {
    echo "BY3";
} elseif ($number % 5 == 0) {
    echo "BY5";
}

Alternative version :

echo ($number % 3 ? ($number % 5 ? "BY3 and 5" : "BY 3") : ($number % 5 ? "BY 5" : ""));

Answer 3

$num_count = 100;
    $div_3 = "Divisible by 3";
    $div_5 = "Divisible by 5";
    $div_both = "Divisible by 3 and 5";
    $not_div = "Not Divisible by 3 or 5";

    for($i=0;$i<=$num_count;$i++)
    {
        switch($i)
        {
            case ($i%15==0):
            echo $i." (".$div_both.")</br>";
            break;
            case ($i%3==0):
            echo $i." (".$div_3.")</br>";
            break;
            case ($i%5==0):
            echo $i." (".$div_5.")</br>";
            break;
            default:
            echo $i."</br>";
            break;
        }
    }