PHP AWS SDK 创建 S3Client 时发生致命错误

Question

尝试使用适用于 PHP 的 AWS 开发工具包来列出存储桶，但在设置 S3Client 后我不断收到此错误，如下所示：

<?php  
require getcwd() . '/aws.phar' /*v3 of the SDK*/;

use Aws\S3\S3Client;
use Aws\Exception\AwsException;

$credentials = new Aws\Credentials\Credentials('I put my', 'credentials here');

$s3 = new Aws\S3\S3Client([
    'region' => 'us-east-1', /*also tried different regions*/
    'version' => '2006-03-01', /*also tried latest*/
    'credentials' => $credentials /*have also tried putting credentials here*/
]);

$s3->listBuckets(); /*still the same error even if I remove this line */ ?>

如果我至少没有填写区域、版本和凭据选项，SDK 实际上会返回一个错误，告诉我填写它们。这是上面代码返回的错误：

致命错误：未捕获错误：调用 phar:///var/www/mail/aws.phar/JmesPath/Lexer.php:343 中未定义的函数 JmesPath\mb_strlen() 堆栈跟踪：#0 phar:///var/ www/mail/aws.phar/JmesPath/Parser.php(76): JmesPath\Lexer->tokenize() #1 phar:///var/www/mail/aws.phar/JmesPath/AstRuntime.php(42) : JmesPath\Parser->parse() #2 phar:///var/www/mail/aws.phar/JmesPath/Env.php(33): JmesPath\AstRuntime->__invoke() #3 phar:/// var/www/mail/aws.phar/Aws/Endpoint/PartitionEndpointProvider.php(117): JmesPath\Env::search() #4 phar:///var/www/mail/aws.phar/Aws/Endpoint/ PartitionEndpointProvider.php(99): Aws\Endpoint\PartitionEndpointProvider::mergePrefixData() #5 phar:///var/www/mail/aws.phar/Aws/ClientResolver.php(740): Aws\Endpoint\PartitionEndpointProvider:: defaultProvider() #6 phar:///var/www/mail/aws.phar/Aws/ClientResolver.php(295): Aws\ClientResolver::_default_endpoint_provider() #7 phar:///var/www/mail/ aws.phar/Aws/AwsClient.php(199): Aws\ClientResolver->resolve() #8 phar:///var/www/mail/aws.phar/Aws/S3/S3Client.php(346): AWS \AwsClie 在 phar:///var/www/mail/aws.phar/JmesPath/Lexer.php 第 343 行

PHP 版本是 7.4，并且我安装了 simplexml 扩展，正如亚马逊所说的要求。服务器是 AWS Lightsail Ubuntu 上的 Apache。

Answer 1

按照 Chris 的建议，启用 mbstring 扩展（多字节字符串）就可以了！