多列表统计之后的数组排序

public function sortArray($ArrayData,$KeyName1,$SortOrder1 = "SORT_ASC",$SortType1 = "SORT_REGULAR"){
    if(!is_array($ArrayData)) {
        return $ArrayData;
    }
    // Get args number.
    $ArgCount = func_num_args();
    // Get keys to sort by and put them to SortRule array.
    for($I = 1;$I < $ArgCount;$I ++) {
        $Arg = func_get_arg($I);
        if(!preg_match("/SORT/",$Arg)) {
            $KeyNameList[] = $Arg;
            $SortRule[]    = '$'.$Arg;
        }
        else {
            $SortRule[]    = $Arg;
        }
    }
    // Get the values according to the keys and put them to array.
    foreach($ArrayData AS $Key => $Info) {
        foreach($KeyNameList AS $KeyName) {
            ${$KeyName}[$Key] = $Info[$KeyName];
        }
    }
    // Create the eval string and eval it.
    $EvalString = 'array_multisort('.join(",",$SortRule).',$ArrayData);';
    eval ($EvalString);
    return $ArrayData;
}

$this->sortArray($list,$key,"SORT_DESC");