Question

我在foreach循环中有以下条件语句。我希望检查所有条件语句。我希望通过使用switch case语句可以完成它。任何人都可以给我一个想法如何做到这一点？或者还有其他方法吗？有些日期有关于所有四个条件的值。他们不会检查我是否使用此代码。由于我是新手，我很难弄清楚如何做到这一点。如果有人能提出想法，那将是一个很大的帮助。

foreach ($query->result() as $row) {

            if ($row->title == 'GK' && $row->type == 'AM') {
                $cal_data[substr($row->date_cal, 8, 2)] = '<div class="gk_am">' . $row->title . ' ' . $row->type . '</div>';
            }  if ($row->title == 'GK' && $row->type == 'PM') {
                $cal_data2[substr($row->date_cal, 8, 2)] = '<div class="gk_pm">' . $row->title . ' ' . $row->type . '</div>';
            } if ($row->title == 'RP' && $row->type == 'AM') {
                $cal_data3[substr($row->date_cal, 8, 2)] = '<div class="rp_am">' . $row->title . ' ' . $row->type . '</div>';
            } if ($row->title == 'RP' && $row->type == 'PM') {
                $cal_data4[substr($row->date_cal, 8, 2)] = '<div class="rp_pm">' . $row->title . ' ' . $row->type . '</div>';
            }     


        }

Answer 1

如果是条件而不是仅使用其他如果条件：

     foreach ($query->result() as $row) {
        if ($row->title == 'GK' && $row->type == 'AM') {
            $cal_data[substr($row->date_cal, 8, 2)] = '<div class="gk_am">' . $row->title . ' ' . $row->type . '</div>';
        } elseif ($row->title == 'GK' && $row->type == 'PM') {
            $cal_data2[substr($row->date_cal, 8, 2)] = '<div class="gk_pm">' . $row->title . ' ' . $row->type . '</div>';
        } elseif ($row->title == 'RP' && $row->type == 'AM') {
            $cal_data3[substr($row->date_cal, 8, 2)] = '<div class="rp_am">' . $row->title . ' ' . $row->type . '</div>';
        } elseif ($row->title == 'RP' && $row->type == 'PM') {
            $cal_data4[substr($row->date_cal, 8, 2)] = '<div class="rp_pm">' . $row->title . ' ' . $row->type . '</div>';
        }     
    }

Answer 2

foreach ($query->result() as $row) 
{
    switch($row->title)
    {
        case 'GK':
            switch($row->type)
            {
                case 'AM':
                    $cal_data[substr($row->date_cal, 8, 2)] = '<div class="gk_am">' . $row->title . ' ' . $row->type . '</div>';
                    break;
                case 'PM':
                    $cal_data2[substr($row->date_cal, 8, 2)] = '<div class="gk_pm">' . $row->title . ' ' . $row->type . '</div>';
                    break;
            }
        break;
        case 'RP':
            switch($row->type)
            {
                case 'AM':
                    $cal_data3[substr($row->date_cal, 8, 2)] = '<div class="rp_am">' . $row->title . ' ' . $row->type . '</div>';
                    break;
                case 'PM':
                    $cal_data4[substr($row->date_cal, 8, 2)] = '<div class="rp_pm">' . $row->title . ' ' . $row->type . '</div>';
                    break;
            }
        break;

    }
}

以上代码与您给定的条件代码相同。看看吧。

建议您在switch语句中使用conditional语句，我们知道可能存在哪些值。

Answer 3

如果你想对switch-case做同样的事情，那么这是一种方法。

switch($row->title()){

  case 'GK':

    switch($row->type()){

      case 'AM':
      ......
      break;

    }

     break;


......
}

Answer 4

foreach ($query->result() as $row) {
switch($row->title) {
    case 'GK': if($row->type=='AM'){
         $cal_data[substr($row->date_cal, 8, 2)] = '<div class="gk_am">' . $row->title . ' ' . $row->type . '</div>';
                }else{
                     $cal_data2[substr($row->date_cal, 8, 2)] = '<div class="gk_pm">' . $row->title . ' ' . $row->type . '</div>';
                }
                break ;
    case 'RP':  if($row->type=='AM'){
                    $cal_data3[substr($row->date_cal, 8, 2)] = '<div class="rp_am">' . $row->title . ' ' . $row->type . '</div>';
                }else{
                     $cal_data4[substr($row->date_cal, 8, 2)] = '<div class="rp_pm">' . $row->title . ' ' . $row->type . '</div>';
                }
                break ;     
    }

}

试试这个

Answer 5

这看起来实际上要比它需要的复杂得多。

$all_cals = [
  'GK' => [
      'AM' => &$cal_data,
      'PM' => &cal_data2
  ],
  'RP' => [
      'AM' => &$cal_data3,
      'PM' => &cal_data4
  ]
];

foreach ($query->result() as $row) {
   $row_cal_data = $all_cals[$row->title][$row->type];
   if (isset($row_cal_data)) {
      $row_cal_data[substr($row->date_cal, 8, 2)] = '<div class="'.tolower($row->title)."_".tolower($row->type).'">' . $row->title . ' ' . $row->type . '</div>';
   }
}

根本没有开关声明。

Answer 6

我认为接近你的情景

prepareForSegue:

Answer 7

放弃整个model1_obj = xx.objects.filter( date_generated__gte=1429142401, date_generated__lte=1431648001, s__icontains="28").exclude(Q(u__in=[93,95]) | Q(v__isnull=True))等并使用foreach ($query->result() as $row) { switch (true) { case ($row->title == 'GK' && $row->type == 'AM'): $cal_data[substr($row->date_cal, 8, 2)] = '<div class="gk_am">' . $row->title . ' ' . $row->type . '</div>'; break; case ($row->title == 'GK' && $row->type == 'PM'): $cal_data2[substr($row->date_cal, 8, 2)] = '<div class="gk_pm">' . $row->title . ' ' . $row->type . '</div>'; break; case ($row->title == 'RP' && $row->type == 'AM'): $cal_data3[substr($row->date_cal, 8, 2)] = '<div class="rp_am">' . $row->title . ' ' . $row->type . '</div>'; break; case ($row->title == 'RP' && $row->type == 'PM'): $cal_data4[substr($row->date_cal, 8, 2)] = '<div class="rp_pm">' . $row->title . ' ' . $row->type . '</div>'; break; } }。通过使用switch作为您的班级名称，您可以在一行中完成所有操作。您的变量递增（array，strtolower() ..等）而不是数组中的新值$cal_data1，$cal_data2 ...等。它可以使您的代码更容易使用：

$cal_data['date_cal'][0]

如何将switch case语句放在php中的foreach循环中？

7 个答案: