[r0n1n]

I know it's PHP but I thought somone was bound to know the JavaScript syntax for the regexp check.

<?php

$days = range(1, 31);

foreach($days as $day)
{
if(ereg("(^[23]?1$)", $day))
{
$suff = "st";
}
elseif(ereg("(^2?2$)", $day))
{
$suff = "nd";
}
elseif(ereg("(^2?3$)", $day))
{
$suff = "rd";
}
else
{
$suff = "th";
}

echo $day . $suff . "<br />";
}
?>