class Solution {

    /**
     * @param Integer[] $nums
     * @return NULL
     */
   function moveZeroes(&$nums)
    {
        $arr  =[];
        $count = count($nums);//数组长度
        if($count || ($count!=1)){
            for ($i = 0; $i<$count; $i++) {
                    if ($nums[$i]) {
                        $arr[] = $nums[$i];
                    }
                }
                $countNotNUll = count($arr);
                for ($i = 0; $i<$countNotNUll; $i++) {
                    $nums[$i] = $arr[$i];
                }
                if($count - $countNotNUll){
                    for ($i = $countNotNUll; $i<$count; $i++) {
                    $nums[$i] = 0;
                    }
                }
        }

    }
}