Question

我用PHP知识为酒店制作剧本，用户（我）选择有多少人即将租房。

我所有的房间都是2人。根据有多少，我每人收取额外的价格/天。更多可以留下来，但那些＆＃34;额外＆＃34;必须根据年龄付费。

function calc()
{
    $data['msg'] = "";
    $data['from_date'] = $this->input->post('from_date');
    $data['to_date'] = $this->input->post('to_date');
    $data['category'] = $this->input->post('category');
    $data['guestid'] = $this->input->post('guestid');
    $data['idroom'] = $this->input->post('room');

    $data['nguests'] = $this->input->post('nguests');
    $data['nchilds'] = $this->input->post('nchilds');
    $data['lchilds'] = $this->input->post('lchilds');

    $data['greek'] = $this->input->post('greek');
    $data['continental'] = $this->input->post('continental');
    $data['halfboard'] = $this->input->post('halfboard');
    $data['whitewine'] = $this->input->post('whitewine');
    $data['redwine'] = $this->input->post('redwine');

    $data['preferences'] = $this->input->post('preferences');
    $data['mandiscount'] = $this->input->post('mandiscount');

    $data['booking'] = $this->input->post('booking');
    $data['airport'] = $this->input->post('airport');
    $data['annotation'] = $this->input->post('annotation');

    $data['is_manual'] = $this->input->post('is_manual');

    if($data['is_manual'] == "manual")
    {
        $data['price_per_day'] = $this->input->post('price_per_day');
    }

    $room_avail = $this->kratiseis->getRoomPrice($data['idroom'], $data['from_date'], $data['to_date']);
    $category_details = $this->admin->getSingleRoomCategory($data['category']);
    $extras = $this->admin->getExtras();
    $client = $this->guests->details($data['guestid']);
    $data['room'] = $this->details->getSingleRoom($data['idroom']);

    //$stay_days = date_diff($data['from_date'], $data['to_date']) - 1;

    $from = new DateTime($this->input->post('from_date'));
    $to = new DateTime($this->input->post('to_date'));
    $stay_days = $from->diff($to);
    $data['stay_for'] = $stay_days->format('%d');

    $data['total_guests'] = $data['nguests'] + $data['nchilds'] + $data['lchilds'];

    /*
     * We only accept 2 persons in any room.  If there are more than 2, we charge extra
     */

    $extra_adults_price = 0;
    $extra_childs_price = 0;
    $extra_adults = 0;
    $extra_childs = 0;
    $we_have_extras = false;

    if($data['total_guests'] > 2)
    {
        /*
         * Find how many adults extra we have.
         */
        if($data['nguests'] > 2)
        {
            $we_have_extras = true;
            $extra_adults = $data['nguests'] - 2;
            $extra_adults_price = ($extra_adults * $data['stay_for']) * 10;
        }

        /*
         * Find how many extra children do we have.
         */
        if( $data['nchilds'] > 2)
        {
            $we_have_extras = true;
            $extra_childs = $data['nchilds'] - 2;
            $extra_childs_price = ($extra_childs * $data['stay_for']) * 5;
        }
    }

这是我从中获取数据的视图：

<div class="column-container">
    <div class="column column-1" style="background-color: #097ea1; color: #fff;">Adults:</div>
    <div class="column column-2" style="background-color: #cee8ef">
        <select name="nguests">
            <option value="1">1</option>
            <option value="2">2</option>
            <option value="3">3</option>
            <option value="4">4</option>
        </select>
    </div>
    <div class="column column-3" style="background-color: #097ea1; color: #fff;">Children 0-5:</div>
    <div class="column column-4" style="background-color: #cee8ef">
        <select name="nchilds">
            <option value="0">0</option>
            <option value="1">1</option>
            <option value="2">2</option>
            <option value="3">3</option>
        </select>
    </div>
    <div class="column column-5" style="background-color: #097ea1; color: #fff;">Children 6-12:</div>
    <div class="column column-6" style="background-color: #cee8ef">
        <select name="lchilds">
            <option value="0">0</option>
            <option value="1">1</option>
            <option value="2">2</option>
            <option value="3">3</option>
        </select>
    </div>
    <div class="column column-7"></div>
    <div class="column column-8"></div>
</div>

我在控制器中也有一些代码。

现在，假设我们预订了3名成人+ 1名儿童=共4人。额外费用是10美元，但应该是15美元（成人10美元，儿童5美元）

如何区分额外人员的价值观，以便获得理想的结果？

Answer 1

尝试使用此代码，我认为问题出在你的逻辑中

Function  CountExtras($data) {      
if($data['total_guests'] <= 2) return 0;

$extra_adults_price = 0;
$extra_childs_price = 0;
$extra_adults = 0;
$extra_childs = 0;

$data['nguests'] = $data['total_guests'] - $data['nchilds'];

If( $data['nguests'] >= 2  )  $data['nguests'] = $data['nguests'] - 2; 
else {
    $data['nguests'] = 0;
    --$data['nchilds'];
}

return $data['nguests']*10 + $data['nchilds']*5;
}

echo CountExtras(array ( 'total_guests' => 1, 'nchilds' => 0 )).'<br>'; // 0
echo CountExtras(array ( 'total_guests' => 2, 'nchilds' => 0 )).'<br>'; // 0
echo CountExtras(array ( 'total_guests' => 3, 'nchilds' => 1 )).'<br>'; // 5 
echo CountExtras(array ( 'total_guests' => 3, 'nchilds' => 0 )).'<br>'; // 10
echo CountExtras(array ( 'total_guests' => 4, 'nchilds' => 1 )).'<br>'; // 15

Answer 2

确定。前两个人的房价基本相同。我想你在这里被解雇了。您已经收集了严格数量的额外房间用户。我不确定为什么不使用基本代数来计算它，因为您在每个表单输入字段中收集特定数据。即如果有人设置2个额外的成员，则需要按以下方式计算：

$price = $this->roomPrice;//some basic value for two persons
$price += ( (int)$this->input->post('extraAdults') > 0 ) ? (int)$this->input->post('extraAdults') * 10 : 0;
$price += ( (int)$this->input->post('extraChild') > 0 ) ? (int)$this->input->post('extraChild') * 5 : 0;
//var_dump($price);

寻找额外的人以及他们属于哪个类别

2 个答案: