PHP Multidimensional, Multi-Column Array Sort

/**
 * Table formatted data multi-column sort
 *
 * Not all data can be easily aggregated/filtered/sorted by data sources
 * Typically this is due to having to aggregate data from multiple data sources (via a Domain Model hopefully)
 * (e.g. we must aggregate user data from a relational db, mongo db, and google services)
 */

$tableFormatedData = array(
    array('column1'=>'Foo', 'column2'=>'Bar', 'column3'=>'...', ...),
    array('column1'=>'Zoo', 'column2'=>'Zar', 'column3'=>'...', ...),
    array('column1'=>'Zoo', 'column2'=>'Zar', 'column3'=>'...', ...),
);

/**
 * @var array user input (perhaps via ajax call from a client side data table widget)
 */
$ordering = array(
    'column1'=>'asc',
    'column2'=>'desc',
    'column3'=>'desc'
);

/**
 * @see http://www.php.net/manual/en/function.usort.php
 */
usort($tableFormatedData, function($rowA, $rowB) use ($ordering) {
    foreach($ordering as $key=>$sortDirection){
        switch($sortDirection){
            case 'desc':
                $direction=-1;
                break;
            case 'asc':
            default:
                $direction=1;
                break;
        }
        if ($rowA[$key] > $rowB[$key]) {
            return $direction;
        } else if ($rowA[$key] < $rowB[$key]){
            return $direction*-1;
        }
    }
    return 0;
});