如何使用PHP与又拍云API实现在线音频转码和转储的功能

require_once('/path/to/upyun-php-sdk/vendor/autoload.php');

use UpyunUpyun;
use UpyunConfig;
use UpyunUtils;
use UpyunUpyunException;

// 配置又拍云API的授权信息
$bucket = 'your_bucket_name';
$operator = 'your_operator_name';
$password = 'your_operator_password';

// 配置音频转码参数
$sourceFile = '/path/to/your/audio/file.mp3';
$targetFormat = 'mp3';
$sampleRate = '44100';
$bitrate = '128k';

// 实例化Upyun对象
$config = new Config($bucket, $operator, $password);
$upyun = new Upyun($config);

// 上传音频文件到又拍云服务器
try {
    $upyun->uploadFile('/target/audio/file.mp3', $sourceFile);
} catch (UpyunException $e) {
    echo $e->getMessage();
    exit;
}

// 调用音频转码接口
try {
    $response = $upyun->avthumbAudio('/target/audio/file.mp3', [
        'format' => $targetFormat,
        'sample_rate' => $sampleRate,
        'bitrate' => $bitrate
    ]);
} catch (UpyunException $e) {
    echo $e->getMessage();
    exit;
}

// 获取转码任务的结果
try {
    $result = $upyun->getResult($response['task_id']);
    echo $result;
} catch (UpyunException $e) {
    echo $e->getMessage();
    exit;
}

try {
    // 将转码后的音频文件移动到指定目录中
    $upyun->moveFile('/target/audio/file.mp3', '/target/audio/file_transcoded.mp3');
} catch (UpyunException $e) {
    echo $e->getMessage();
    exit;
}