How to use PHP and Alibaba Cloud OCR to identify express delivery tracking numbers?

How to use PHP and Alibaba Cloud OCR to identify express delivery tracking numbers?

Abstract: Express tracking number identification is one of the common tasks in the express delivery industry. This article will introduce how to use PHP and Alibaba Cloud OCR service to realize express delivery tracking number identification, and provide detailed code examples.

Introduction:
With the rapid development of express delivery business, express delivery tracking numbers have become an important identifier for tracking express items between couriers and users. Therefore, it is particularly important to accurately and quickly identify the express delivery number. Traditional manual identification relies on manual operations, which is time-consuming, labor-intensive and error-prone. Using OCR technology, we can easily realize automatic identification of express delivery number. This article will use PHP as an example to introduce how to use Alibaba Cloud OCR service to identify express delivery tracking numbers.

Step 1: Apply for Alibaba Cloud OCR service
To use Alibaba Cloud OCR service, you need to register on the Alibaba Cloud official website and activate the OCR service. Create a new application in the console and obtain the corresponding Access Key and Secret Key.

Step 2: Install the Alibaba Cloud SDK for PHP
To use the Alibaba Cloud OCR service in a PHP project, you need to install the Alibaba Cloud SDK. SDK dependencies can be introduced through Composer or manual download.

Step 3: Write PHP code
The following is a sample code that uses PHP and Alibaba Cloud OCR service to identify the express delivery number:

require '/path/to/vendor/autoload.php'; // 引入阿里云的SDK

use AlibabaCloudClientAlibabaCloud;
use AlibabaCloudClientExceptionClientException;
use AlibabaCloudClientExceptionServerException;
use AlibabaCloudAirecAirec;

// 配置阿里云的Access Key和Secret Key
AlibabaCloud::accessKeyClient('{your access key}', '{your secret key}')
    ->regionId('cn-shanghai')
    ->asDefaultClient();

// 调用阿里云OCR服务进行快递单号识别
function recognizeExpressNumber($imagePath) {
    try {
        $result = AlibabaCloud::rpc()
            ->product('Ocr')
            ->scheme('https')
            ->version('2015-11-11')
            ->action('RecognizeExpress')
            ->method('POST')
            ->host('ocr.cn-shanghai.aliyuncs.com')
            ->options([
                'query' => [
                    'RegionId' => 'cn-shanghai',
                    'Format' => 'json',
                    'ImageURL' => 'http://example.com/'.$imagePath,
                ],
            ])
            ->request();
            
        return $result->toArray();
    } catch (ClientException $e) {
        // 客户端调用失败处理
        echo $e->getErrorMessage() . PHP_EOL;
    } catch (ServerException $e) {
        // 服务端处理失败处理
        echo $e->getErrorMessage() . PHP_EOL;
    }
}

// 调用示例
$imagePath = 'path_to_your_image.png'; // 待识别的快递单图片路径
$result = recognizeExpressNumber($imagePath);
if ($result && isset($result['RequestId'])) {
    echo '快递单号：' . $result['Data']['Number'] . PHP_EOL;
} else {
    echo '识别失败。' . PHP_EOL;
}

In the above code, we call Alibaba Cloud OCR's RecognizeExpress interface is used to identify the express delivery number. It should be noted that the ImageURL parameter specifies the URL of the image to be recognized, and the binary data of the image can also be passed directly.

Conclusion:
This article introduces how to use PHP and Alibaba Cloud OCR service to realize automatic identification of express delivery number. By writing the corresponding code and combining it with the functions of Alibaba Cloud OCR service, we can easily realize automatic identification of express delivery order numbers and improve processing efficiency and accuracy. Hope this article is helpful to you.

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