Example of `elseif`

gistfile1.php

<?php

/**
 * Pass in a number and get it back as a string with an ordinal suffix (1 -> 1st, 2 -> 2nd etc)
 */
function addSuffix($number) 
{
    if ($number == 1) {
        return $number + 'st';
    } elseif ($number == 2) {
        return $number + 'nd';
    } elseif ($number == 3) {
        return $number + 'rd';
    } else {
        return $number + 'th';
    }
}