无法使用php将大图片上传到base64服务器上

<?php
require_once 'vendor/autoload.php';

use Qcloud\Cos\Client;
use Qcloud\Cos\Exception\CosException;

$bucket = 'your-bucket-name';
$region = 'your-region';
$secretId = 'your-secret-id';
$secretKey = 'your-secret-key';

$client = new Client([
    'region' => $region,
    'credentials' => [
        'secretId' => $secretId,
        'secretKey' => $secretKey,
    ],
]);

$filePath = 'path/to/your/large/image.jpg';
$key = 'your-object-key';

try {
    $result = $client->upload(
        $bucket,
        $key,
        fopen($filePath, 'rb'),
        [
            'PartSize' => 5 * 1024 * 1024, // 分片大小，单位为字节
            'Concurrency' => 5, // 并发上传的分片数量
        ]
    );

    echo 'Upload successful. Object URL: ' . $result['ObjectURL'];
} catch (CosException $e) {
    echo 'Upload failed: ' . $e->getMessage();
}
?>