- mktime: documentation ( source)
- date: documentation ( source)
<?php
$date = mktime(0, 0, 0, 4, 1, 2013);
$days = date("t", $date);
for ($i = 1; $i <= $days; $i++) {
if($i % 4 == 0){
echo "<div style='color: red'>" . $i . "</div>";
}
else{
echo $i;
}
}