如何将 $arr['news'] 更改为 echo

Question

请帮忙，我正在学习 json，但我发现很难插入代码 echo。如果你知道答案，请帮助我

我的代码

if ($result) {
    $arr['news'] = '';
    $idterakhir = '';
    $query = $pdo->query($sql);
    while ($row = $query->fetch(PDO::FETCH_OBJ)) {
        // change this into echo
        $arr['news'] .= '<div class="card" news_id="'.$row->news_id.'">'.$row->news_id.'<br>'.$row->news.'</div>';
        // change this into echo
        $idterakhir = $row->news_id;
    }
    $arr['idterakhir'] = $idterakhir;
    $arr['end'] = false;
} else {
    $arr['end'] = true;
}
echo json_encode($arr);

进入：

echo "
     <div class='card' news_id='$id'> $id  <br> $title  </div>
    ";

Answer 1

如果您需要回显$arr['news'] 的内容，只需：

echo $arr['news'];

Answer 2

while ($row = $query->fetch(PDO::FETCH_OBJ)) {
    $id2 = $row['news_id'];
    $id = <div class="card" news_id="'.$id2.'">
    $news = $row['news'];
    $title = $id.$id2.<br>'.$news.'</div>        
    $arr['news'] .= title;
    echo $arr['news'];
    $idterakhir = $row->news_id;
}

这应该为每个循环打印$arr['news']。