Question

我试图使用MongoDB和PHP创建一个项目。我创建了一个表并插入了所有数据。现在，我想使用删除按钮删除记录，并在每行中插入删除链接。我将其链接到包含以下代码的delete.php。

<?php 
require 'vendor/autoload.php';
$id = $_GET['id']; 
$conn=new MongoDB\Client("mongodb://localhost:27017");
$db=$conn->project;
$collection=$db->notes;

try{
$id =new  MongoDB\BSON\ObjectID($id);
$collection->deleteOne(array('_id'=>$id ));
header('location:real.php');
}
catch(Expection $e){}
?>

但是现在我遇到了这个错误

Uncaught MongoDB\Driver\Exception\InvalidArgumentException: Error parsing ObjectId string: in C:\xampp\htdocs\mongo\delete.php:9 Stack trace: #0 C:\xampp\htdocs\mongo\delete.php(9): MongoDB\BSON\ObjectId->__construct('') #1 {main} thrown in C:\xampp\htdocs\mongo\delete.php on line 9

我的index.php包含以下代码

<div method="post">

        <table style="width:50%" border="solid">
          <tr>
            <th>_id</th>
            <th>Author</th>
            <th>Subject</th>
            <th>Title</th>
            <th>Notes</th>
            <th>Difficulty</th>
            <th>Related Topics</th>
            <th>Action</th>
          </tr>

        <?php
        
        $collection = $db->notes;
        $data = $collection->find();
        foreach($data as $document){
         ?> 
            <tr>
            <td><?php echo $document['_id'] ?></td>
            <td><?php echo $document['author'] ?></td> 
            <td><?php echo $document["subject"] ?></td>
            <td><?php echo $document["title"] ?></td>
            <td><?php echo $document["notes"] ?></td> 
            <td><?php echo $document["difficulty"] ?></td>
            <td><?php echo $document["rel_topic"] ?></td> 
            <td><a href='delete.php?id=<?php $document['_id'];?>'>Delete</a></td>
            </tr>
        </table>
        
    </div>

请帮助我！！我是PHP新手

未捕获的MongoDB \ Driver \ Exception \ InvalidArgumentException：解析ObjectId字符串时出错：

0 个答案: