exTrim() Enhanced trim() to support array

/**
 * Enhanced trim() to support array
 * @author Wilson Zeng
 */
function exTrim($mixed, $removeEmptyString = FALSE){
    if(is_array($mixed)){
    foreach($mixed as $index => &$item){
        $item = exTrim($item);
        if($removeEmptyString && $item === ''){
        array_splice($mixed, $index, 1);
        }
    }
    return $mixed;
    }else{
    return trim($mixed);
    }
}