function sortByOneKeyx(array $array, $key, $asc = true) {
	
	$result = array();
        
    $values = array();
    foreach ($array as $id => $value) {
        $values[$id] = isset($value[$key]) ? $value[$key] : '';
    }
        
    if ($asc) {
        asort($values);
    }
    else {
        arsort($values);
    }
        
    foreach ($values as $key => $value) {
        $result[$key] = $array[$key];
    }
        
    return $result;
}