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我有一個表格應該將對論壇主題的回覆輸入到數據庫中,並將用戶重定向回同一主題。經過多次試驗和錯誤,我終於獲得了表格,但每次只將兩個相同的條目放入數據庫。我無法弄清楚爲什麼。我查了這個相同的問題,大多數其他人在表單提交後沒有重定向,或者他們使用AJAX或jQuery或其他東西。這是我的頁面信息:php表單提交信息兩次
<?php
session_start();
include_once('includes/config.php');
include_once('classes/topic.php');
include_once('classes/post.php');
include('includes/header.php');
?>
<link rel="stylesheet" href="css/dd.css">
<?php
$topic = new Topic;
if (isset($_GET['id']))
{
$topic_id = $_GET['id'];
$data = $topic->fetch_data($topic_id);
if (isset($_POST['content']))
{
// someone posted a reply
$date = date('Y-m-d H:i:s');
$by = $_SESSION['user_id'];
$query = $pdo->prepare("INSERT INTO dd_posts (post_content, post_date, post_by, post_topic) VALUES (? ,? ,?, ?)");
$query->bindParam(1, $_POST['content']);
$query->bindParam(2, $date);
$query->bindParam(3, $by);
$query->bindParam(4, $_GET['id']);
$query->execute();
$result = $query->execute();
header("location:topic.php?id=".$_GET['id']);
exit;
}
?>
<div id ="wrapper">
<div class="drop-section">
<div id="menu">
<a class="item" href="drop_index.php">Dead Drop</a>
<a class="item" href="add_topic.php">New Post</a>
<a class="item" href="admin/add_cat.php">New Category</a>
<div id="userbar">
<?php
if($user->is_logged_in()) {
echo 'Hello ' . $_SESSION['user_name'] . '. How are you?';
} else {
echo '<a class="item" href="login.php">Sign in</a> or <a class="item" href="index.php">Create an account</a>';
}
?>
</div>
</div>
<table>
<tr class = "header-row">
<div id = "sans">
<?php echo $data['topic_subject']; ?>
- <small>started by <a href="player.php?id=<?php echo $data['user_id']; ?>"><?php echo $data['user_name']; ?> </a></small><br />
<?php echo $data['topic_content']; ?>
</div>
</tr>
<?php
// retrieve all the replies to the original topic
$post = new Post;
$topic_id = $_GET['id'];
$posts = $post->fetch_all_posts_by_topic($topic_id);
?>
<tr>
<td class="first-column">
<?php foreach ($posts as $post) { ?>
<div class="drop-content-box">
<li><?php echo $post['post_content']; ?><br />
<div class = "forum-user-info">
<a href="player.php?id=<?php echo $post['user_id']; ?>">
<?php echo $post['user_name']; ?></a> - level:
<?php echo $post['user_level']; ?>
</div>
</li>
</div>
<?php } ?>
</td>
</tr>
</table>
<?php
if($user->is_logged_in())
{
?>
<div id = "header-section">Reply</div>
<?php if (isset($error)) { ?>
<small><?php echo $error; ?></small>
<?php } ?>
<form action="<?php echo "topic.php?id=".$_GET['id']?>" method="post" autocomplete="off">
<small><i>Do not post the actual answer to any level.</i></small><br />
<textarea rows="15" cols="50" name="content" placeholder="Give us your thoughts..."></textarea><br />
<input type="submit" value="Post" />
</form>
</div>
</div>
<?php
} else {
echo '<div id = "errors"><small>You must be signed in to reply.</div></small>';
}
}
include_once('includes/footer.php');
?>
我懷疑我會發現,謝謝。我正在尋找一些其他代碼的想法,並忘記刪除該部分。 – ddonche 2015-02-23 06:01:08