用PHP OOP循環MySQLi准備的語句

Question

您好，我試圖每次使用fetch（）函數的while循環時都使用PHP編寫的預編寫語句循環遍歷數據庫表中的所有行，這使我陷入無限循環，這是我的代碼，請幫忙

public function loadIndex() {
    $conn = new Database();
    $db = $conn->Connect();
    $query = "
        SELECT Title,Description,uploadeddate
        FROM article
        ORDER BY article.uploadeddate DESC LIMIT 10";
    $stmt = $db->prepare($query);
    $stmt->execute();
    $stmt->store_result();
    $stmt->bind_result($title, $desc, $date);
    $num_rows = $stmt->num_rows();
    $fetch = $stmt->fetch();
    $data = array(
    'title' => $title,
    'desc' => $desc,
    'date' => $date,
        'num_rows' => $num_rows,
    'fetch' => $fetch
    );
    return $data;
}

這是用途

<?php
  art = new Articles();
  $index = $art->loadIndex();
  $num =  $index['num_rows'];
  if($num != 0) {
while() {$index['fetch']} {
    echo $index['title']."<br />";
    echo $index['desc']."<br />";
    echo $index['date']."<br />";
   }
   }?>

謝謝

Answer 1

一團糟！

暫時忘記常識性的觀點。

沒有經過測試，但可以嘗試作為10的入門版。

文章類

public function loadIndex() {
    $conn = new Database();
    $db = $conn->Connect();

    $title = '';
    $desc = '';
    $date = '';
    $data = array();

    $query = "SELECT Title,Description,uploadeddate
              FROM article
              ORDER BY article.uploadeddate DESC LIMIT 10";

    $stmt = $db->prepare($query);
    $stmt->execute();

    $stmt->bind_result($title, $desc, $date);

    while ( $stmt->fetch() ) {

        $data[] = array(
                   'title'    => $title,
                   'desc'     => $desc,
                   'date'     => $date                      
                  );
    }

    return $data;
}

主代碼調用Article-> loadIndex（）

<?php
    art = new Articles();
    $index = $art->loadIndex();

    // you dont need to know how big the $index array is here
    // if its empty then the foreach will just not run.

    foreach ($index as $row) {
        echo $row['title'] . '<br />';
        echo $row['desc'] . '<br />';
        echo $row['date'] . '<br />';
   }
?>

Answer 2

在您的索引中：

While($stmt->fetch())
{
$index =count($data);
$data['title'][$index] = $title;
...
}

Answer 3

首先，您應該只建立一次數據庫連接，而不是在每個函數調用中進行一次。 連接后，您只需在函數內部執行查詢即可，因此無需每次都連接。

其次，導致無限循環是因為while循環中沒有條件。

所以改變這個：

while() {$index['fetch']}

至

while($index['fetch'])

謝謝阿馬爾