tencent cloud

public Qcloud\\Cos\\Client download(string $bucket, string $key, string $saveAs, array $options = array());

<?php

require dirname(__FILE__) . '/../vendor/autoload.php';

$secretId = "SECRETID"; //Replace it with the actual `SecretId`, which can be viewed and managed in the CAM console at https://console.tencentcloud.com/cam/capi
$secretKey = "SECRETKEY"; //Replace it with the actual `SecretKey`, which can be viewed and managed in the CAM console at https://console.tencentcloud.com/cam/capi
$region = "ap-beijing"; //Replace it with the actual `region`, which can be viewed in the console at https://console.tencentcloud.com/cos5/bucket
$cosClient = new Qcloud\\Cos\\Client(
    array(
        'region' => $region,
        'schema' => 'https', // Protocol header, which is http by default
        'credentials'=> array(
            'secretId'  => $secretId ,
            'secretKey' => $secretKey)));
$local_path = "/Users/xxx/Desktop/exampleobject.txt"; //Save it to the user’s local path  

$printbar = function($totalSize, $downloadedSize) {
    printf("downloaded [%d/%d]\\n", $downloadedSize, $totalSize);
};

try {
    $result = $cosClient->download(
        $bucket = 'examplebucket-1250000000', // Bucket name in the format of `BucketName-APPID`, which can be viewed in the COS console at https://console.tencentcloud.com/cos5/bucket
        $key = 'exampleobject',
        $saveAs = $local_path,
        $options= array(
            'Progress' => $printbar, // Specify the progress
            'PartSize' => 10 * 1024 * 1024, //Part size
            'Concurrency' => 5, //Number of concurrent parts
            'ResumableDownload' => true, //Whether to enable checkpoint restart. It’s disabled by default.
            'ResumableTaskFile' => 'tmp.cosresumabletask' //Checkpoint file path. Default value: `<localpath>.cosresumabletask`
        )
    );
    // Request succeeded
    print_r($result);
} catch (\\Exception $e) {
    // Request failed
    echo($e);
}