Object Storage Service:List buckets using OSS SDK for PHP

Below is a code example for listing buckets in all regions within the current Alibaba Cloud account:

<?php

require_once __DIR__ . '/../vendor/autoload.php'; // Import the autoload file to load dependency libraries

use AlibabaCloud\Oss\V2 as Oss;

// Specify command line parameters.
$optsdesc = [
    "region" => ['help' => 'The region in which the bucket is located.', 'required' => True], // The region must be specified. Example: oss-cn-hangzhou.
    "endpoint" => ['help' => 'The domain names that other services can use to access OSS.', 'required' => False], // The endpoint parameter is optional. The endpoint that other services can use to access OSS.
];
$longopts = \array_map(function ($key) {
    return "$key:"; 
}, array_keys($optsdesc));

// Parse command line parameters
$options = getopt("", $longopts); 

// Check whether all required parameters have been configured.
foreach ($optsdesc as $key => $value) {
    if ($value['required'] === True && empty($options[$key])) {
        $help = $value['help'];
        echo "Error: the following arguments are required: --$key, $help"; // Specifies that the required parameters are not configured.
        exit(1); 
    }
}

// Retrieve the values of the command line parameters.
$region = $options["region"]; // The region in which the bucket is located.

// Use environment variables to load the credential information (AccessKey ID and AccessKey secret).
$credentialsProvider = new Oss\Credentials\EnvironmentVariableCredentialsProvider(); // Load the credential information from environment variables.

// Use the default configurations of the SDK.
$cfg = Oss\Config::loadDefault(); // Load the default configurations.
$cfg->setCredentialsProvider($credentialsProvider); // Specify the credential provider.
$cfg->setRegion($region); // Set the region.
if (isset($options["endpoint"])) {
    $cfg->setEndpoint($options["endpoint"]); // Specify the endpoint if one is provided.
}

// Create an OSS client instance.
$client = new Oss\Client($cfg); 

// Create a paginator for the ListBuckets operation.
$paginator = new Oss\Paginator\ListBucketsPaginator($client); // Create a paginator to list buckets.
$iter = $paginator->iterPage(new Oss\Models\ListBucketsRequest()); // Retrieve the pagination iterator.


// Traverse the paginated results.

foreach ($iter as $page) { // Traverse the list of buckets on each page.
    foreach ($page->buckets ?? [] as $bucket) { // Traverse each bucket on the current page.
        print ("Bucket: $bucket->name, $bucket->location\n"); // Print the bucket name and location.
    }
}