IterationsModuloExample.php

<?php

$max = isset($_GET['iterations']) ? (int) $_GET['iterations'] : 100;


$mod3 = 0;
$mod5 = 0;
$out  = array();

for ($i = 0; $i <= $max; $i++)
{
	$_o = $i;

	$mod3 = $i % 3;
	$mod5 = $i % 5;

	switch (true)
	{
		case $mod3 === 0 && $mod5 === 0:
			$_o = 'drievijf';
		break;

		case $mod3 === 0:
			$_o = 'drie';
		break;

		case $mod3 === 0 && $mod5 === 0:
			$_o = 'vijf';
		break;
	}

	$out[] = $_o;
}

array_walk($out, function($value) {
	echo $value . "\n";
});