PHP 奇数和偶数课程

Posted 2021-05-14

$count = 0;
 foreach ($images as $image) {
   $count++;
   $odd_even = ceil($count);
    if ($odd_even % 2) {
      $class = 'odd';
    } else {
      $class = 'even';
    }
      $content .= '<li class="'.$class.'">'; 
  }