My else statement is not echoing the variable

Question

It's written in PHP. My if is working fine, but my else is not echoing. $start and $end are working variables.

   <select name="trip" class="select-trip">
  <?php foreach ( $wp_trips as $trip ) {
    if ($trip->available && $is_day_trip){
         $start = date_i18n("d/m/Y", strtotime($trip->start_date));
         $end = date_i18n("d/m/Y", strtotime($trip->end_date));?>
        <option value="<?php echo $trip->remote_ID; ?>">
        <?php echo $start;
      } else {
          echo $start . ' T/M ' . $end;
      }
    } ?>
  </select>

Answer 1

You should declare your $start and $end variables before if statement and you should put your option tag before if statement and also close it after if statement

<select name="trip" class="select-trip">
<?php 
foreach ( $wp_trips as $trip ) {
    $start = date_i18n("d/m/Y", strtotime($trip->start_date));
    $end = date_i18n("d/m/Y", strtotime($trip->end_date));
    ?>
    <option value="<?php echo $trip->remote_ID; ?>">
       <?php
          if ($trip->available && $is_day_trip){
             echo $start;
          } else {
             echo $start . ' T/M ' . $end;
          }
        ?> 
    </option> 
    <?php
} 
?>
</select>

Answer 2

The problem in this code is $start and $end has only scope with in that if statement. For getting the value of $start and $end outside the if statement, variable declaration should obviously been done outside the if statement.

Answer 3

As example you can do it like this one:

foreach ($wp_trips as $trip) {
        $checker = $trip->available && $is_day_trip;
        $start = '';
        $end = '';
        if ($checker) {
            $start = date_i18n("d/m/Y", strtotime($trip->start_date));
            $end = date_i18n("d/m/Y", strtotime($trip->end_date));
        }

        if ($checker && !empty($start)) {?>
            <option value="<?php echo $trip->remote_ID; ?>">
                <?php echo $start;?>
            </option>
        } else {
            echo $start . ' T/M ' . $end;
        }
    }