Cardinal Endings for Numbers

Released on December 2, 2002
Last Updated: December 2, 2002 9:46 PM
Version: 1

Description

Adds cardinal endings to numbers, like 1st and 2nd, and doesn’t do much else. Has an option or two that might make this useful for you.

Installation/Usage

This adds proper ending for numbers, ie 2nd, 3rd, 8th, with optionally outputting the ending as superscript. Just drop it in your script and have fun. I use it for formatting ages on mullenweg.com but you could really use it for any number. An oldie but a goodie.

Code

nthnum function

<?php
function nthnum ($age,$small=0) { // proper ending for numbers, ie 2nd, 3rd, 8th
    $last_char_age = substr("$age", -1);
    switch($last_char_age) {
        case '1' :
            $th = 'st';
            break;
        case '2' :
            $th = 'nd';
            break;
        case '3' :
            $th = 'rd';
            break;
        default :
            $th = 'th';
            break;
        }
    if ($age > 10 && $age < 20) $th = 'th';
    if (0 == $small) $niceage = $age.$th;
    if (1 == $small) $niceage = $age."<sup>$th</sup>";
    return $niceage;
    }
?>

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2 Comments

  1. A couple things:

    In the third line you should probably use modulus and subsequently compare it to integers rather than strings. That is, set the 3rd line to: $last_char_age = $age % 10;
    For each of the “cases”, remove the single quotes from the numbers.

    Numbers >100 that end in 10..19 should *always* have th. A fix to this: instead of the line starting with “if ($age >” etc, use this:
    if (($age % 100) > 10 && ($age % 100) < 20)

    You should also replace “if (0 == $small)” by “if (!$small)” and “if (1 == $small)” by “else” – it is a boolean parameter – not technically, but pragmatically. Surely a number can still be passed, but in its meaning it is a boolean parameter.

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