foreach循环中，这样的变化怎么写

      
      11 && $value['navigation_id']<27){?>
      题目1 
      
      
      

$array = array(1,2,3,4,5,6,7,8,9,10);
        $num=1;
        foreach ($array as $key => $value) {
            if($num%2==0){
                echo '题目'.$value.'
------解决思路----------------------
';
            }else{
                echo '题目'.$value.'  ';
            }
            $num++;
        }