在while循環之前如何回顯內容？

Question

我試圖弄清楚如何在while循環上方和num_rows檢查下回顯內容，但是在執行此操作之前，我需要從while循環中獲取內容。

$sql = "SELECT * FROM table WHERE column = ?";
$stmt = $db->prepare($sql);
$stmt->bind_param('s', $test);
$result = $stmt->execute();
$stmt_result = $stmt->get_result();
if ($stmt_result->num_rows > 0) {
echo "<div id='wrapper'>"; //I need to add HTML content here if $status === 2
    while ($row = $stmt_result->fetch_assoc()) {
       $title = $row['title'];
       $description = $row['descript'];
       $status = $row['status'];
       if ($status === 2) {
          echo $status;
          continue; //skip to the next iteration
       }
       echo $title;
       echo $description;
    }
}

也許我錯過了顯而易見的事情。 怎么做？

總而言之，這是我正在尋找的輸出：

//if status !== 2: (i get 3 results)
<div id='wrapper'>
//title
//description

//title
//description

//title
//description
</div>
//if status === 2: (i get 1 result)
<div id='other_wrapper'>
//title
//description
</div>
//if status === 3: (i get 5 results)
<div id='yet_another_wrapper'>
//title
//description

//title
//description

//title
//description

//title
//description

//title
//description
</div>

Answer 1

也許這樣的事情可能對您有用。

將這些行替換為while循環

$rows = $stmt_result->fetch_all(MYSQLI_ASSOC);
foreach ($rows as $row) {
  if ($row['status'] === 2) {
    $title = $row['title'];
    $description = $row['descript'];
    $status = $row['status'];
    if ($status === 2) {
      echo $status;
      continue; //skip to the next iteration
    }
    echo $title;
    echo $description;
  }
}

Answer 2

嘗試這個：

$idv =0;
if ($stmt_result->num_rows > 0) {
  while ($row = $stmt_result->fetch_assoc()) {
   if($row['status'] ==2 && $idv==0){
     $idv =1;
     echo "<div id='wrapper'>"; //adds div once only if status is 2
   }
   $title = $row['title'];
   $description = $row['descript'];
   $status = $row['status'];
   if ($status === 2) {
      echo $status;
      continue; //skip to the next iteration
   }
   echo $title;
   echo $description;
  }
}

Answer 3

上面的答案很好，但是有人提供了完美的解決方案：

$wrappers = [
   'wrapper' => [/* items from db with status not 2 or 3 */]
   'other_wrapper' => [/* items from db with status 2 */]
   'yet_another_wrapper' => [/* items from db with status 3 */]
];
function getWrapperNameForStatus($status) {
    if($status === 2) {
        return 'other_wrapper';
    }

    if($status === 3) {
        return 'yet_another_wrapper';
    }

    return 'wrapper';
}

$wrappers = [];
while ($row = $stmt_result->fetch_assoc()) {
    $wrapperName = getWrapperNameForStatus($row['status']);

    $wrappers[$wrapperName][] = [
        'title' => $row['title'],
        'description' => $row['description'],
        'status' => $row['status']
    ];
}

有關此解決方案， 請訪問https://www.phphelp.com/u/JimL 。 它很干凈，使您能夠在無限制的包裝器中發布無限制的內容，並且可以防止代碼重復。 謝謝吉姆。