File Source for modifier.ordinal

<?php
/**
* Smarty plugin
* @package Smarty
* @subpackage plugins
*/
/**
* Smarty plugin
* -------------------------------------------------------------
* Type: modifier
* Name: display_bytes
* Purpose: show an integer in a human readable Byte size with optional resolution
* Example: {$someFile|filesize|display_bytes:2}
* -------------------------------------------------------------
*/
function smarty_modifier_ordinal_suffix( $pNum ) {
// first convert to string if needed
$ret = (string) $pNum;
// now we grab the last digit of the number
$last_digit = substr($ret, -1, 1);
// if the string is more than 2 chars long, we get
// the second to last character to evaluate
if (strlen($ret)>1) {
$next_to_last = substr($ret, -2, 1);
} else {
$next_to_last = "";
}
// now iterate through possibilities in a switch
switch($last_digit) {
case "1":
// testing the second from last digit here
switch($next_to_last) {
case "1":
$suffix ="th";
break;
default:
$suffix ="st";
}
break;
case "2":
// testing the second from last digit here
switch($next_to_last) {
case "1":
$suffix ="th";
break;
default:
$suffix ="nd";
}
break;
// if last digit is a 3
case "3":
// testing the second from last digit here
switch($next_to_last) {
case "1":
$suffix ="th";
break;
default:
$suffix ="rd";
}
break;
// for all the other numbers we use "th"
default:
$suffix ="th";
}
// finally, return our string with it's new suffix
return $pNum.tra( $suffix );
}
?>

Source for file modifier.ordinal_suffix.php