Makes XML and JSON play nice when being rendered from the same associate array.

removeSingularKeys.php

<?php
function removeSingularKeys($array, $parent="")
{        
    $result = array();
    $result = $array;
    foreach($array as $key => $value){
        if(keyIsTheSingularFormOf($key, $parent)){
            return $value;
        }
        if(is_array($value)){
            $result[$key] = removeSingularKeys($value, $key);
        }
    }
    return $result;
}

function keyIsTheSingularFormOf($key, $parent){
    if($parent == $key . "s"){
        return TRUE;
    }
    return FALSE;
}