在 PHP 中本地删除文件时如何删除 S3 存储桶中的对象答案

【问题标题】：How to delete an object in an S3 Bucket when file has been deleted locally in PHP在 PHP 中本地删除文件时如何删除 S3 存储桶中的对象
【发布时间】：2021-12-16 17:27:05
【问题描述】：

我正在尝试实现一项功能，该功能有助于通过单击我网站上的按钮来删除我的 s3 存储桶中的对象。到目前为止，我已经能够成功实现文件的上传，但是使用 AWS SDK for php 删除它们似乎是不可能的。以下是我已经实现的。

<?php

require 'vendor/autoload.php';

use Aws\S3\S3Client;
use Aws\S3\Exception\S3Exception;

class Delete{
function deleteS3object(string $bucketname, string $keyfilename){

   $bucket = $bucketname;
   $keyname = $keyfilename;
   
   $s3 = new S3Client([
       'version' => 'latest',
       'region'  => 'us-east-2'
   ]);
   
   // 1. Delete the object from the bucket.
   try
   {
       echo 'Attempting to delete ' . $keyname . '...' . PHP_EOL;
   
       $result = $s3->deleteObject([
           'Bucket' => $bucket,
           'Key'    => $keyname
       ]);
   
       if ($result['DeleteMarker'])
       {
           echo $keyname . ' was deleted or does not exist.' . PHP_EOL;
       } else {
           exit('Error: ' . $keyname . ' was not deleted.' . PHP_EOL);
       }
   }
   catch (S3Exception $e) {
       exit('Error: ' . $e->getAwsErrorMessage() . PHP_EOL);
   }
   
   // 2. Check to see if the object was deleted.
   try
   {
       echo 'Checking to see if ' . $keyname . ' still exists...' . PHP_EOL;
   
       $result = $s3->getObject([
           'Bucket' => $bucket,
           'Key'    => $keyname
       ]);
   
       echo 'Error: ' . $keyname . ' still exists.';
   }
   catch (S3Exception $e) {
       exit($e->getAwsErrorMessage());
   } 
   
   return;
}
}

$x =  new Delete();
$success = $x->deleteS3object('bucketname', 'file.png') ? 'deleted': 'Error';
echo $success;
?>

但它为我返回 500 错误通知，有什么可能做错了吗？

【问题讨论】：

标签： php amazon-s3 aws-sdk

【解决方案1】：

我想我现在明白我的错误是什么，在 S3Client 初始化中，我未能提供必要的凭据，即

key 和 secret_key

，所以我添加了这些行，它工作得很好。下面是一个可行的解决方案。

<?php

require 'vendor/autoload.php';

use Aws\S3\S3Client;
use Aws\S3\Exception\S3Exception;

class Delete{
function deleteS3object(string $bucketname, string $keyfilename){

   $bucket = $bucketname;
   $keyname = $keyfilename;
   
   $s3 = new S3Client([
      'region'  => 'us-east-2',
      'version' => 'latest',
      'credentials' => [
         'key'    => "key",
         'secret' => "secretkey",
      ]
   ]);
   
   // 1. Delete the object from the bucket.
   try
   {
       echo 'Attempting to delete ' . $keyname . '...' . PHP_EOL;
   
       $result = $s3->deleteObject([
           'Bucket' => $bucket,
           'Key'    => $keyname
       ]);
   
       if ($result['DeleteMarker'])
       {
           echo $keyname . ' was deleted or does not exist.' . PHP_EOL;
       } else {
           exit('Error: ' . $keyname . ' was not deleted.' . PHP_EOL);
       }
   }
   catch (S3Exception $e) {
       exit('Error: ' . $e->getAwsErrorMessage() . PHP_EOL);
   }
   
   // 2. Check to see if the object was deleted.
   try
   {
       echo 'Checking to see if ' . $keyname . ' still exists...' . PHP_EOL;
   
       $result = $s3->getObject([
           'Bucket' => $bucket,
           'Key'    => $keyname
       ]);
   
       echo 'Error: ' . $keyname . ' still exists.';
   }
   catch (S3Exception $e) {
       exit($e->getAwsErrorMessage());
   } 
   
   return;
}
}

$x =  new Delete();
$success = $x->deleteS3object('bucketname', 'file.png') ? 'deleted': 'Error';
echo $success;
?>

【讨论】：