How to connect to Alibaba Cloud content security interface through PHP to implement image review function

How to implement image audit function through PHP docking with Alibaba Cloud content security interface

Introduction:
With the rapid development of the Internet, the security and compliance of image content have become more and more important. In order to protect the legitimate rights and interests of users and provide better services, many platforms require content review of uploaded images. Alibaba Cloud provides a powerful and comprehensive content security solution, including image auditing capabilities. This article will introduce how to use PHP to connect to the Alibaba Cloud content security interface to implement the image audit function.

Step 1: Apply for Alibaba Cloud API access permission
First, we need to register on the Alibaba Cloud official website and create our own account. Next, log in to the Alibaba Cloud console and enter the access control RAM page. Create a new sub-account on this page and assign it access rights to Alibaba Cloud Content Security Service. Remember to obtain the AccessKey ID and AccessKey Secret of the sub-account.

Step 2: Install aliyuncs SDK
Alibaba Cloud officially provides a PHP SDK that can easily connect to various Alibaba Cloud services. We can install this SDK through Composer. Add the following content to the composer.json file in the project root directory:

{
    "require": {
        "aliyuncs/oss-sdk-php": ">1.0"
    }
}

Then execute the following command on the command line to install the SDK:

composer install

Step 3: Write the image review code
Create a file named "ImageAudit.php", and then write the following code:

<?php
require_once __DIR__ . '/vendor/autoload.php';
use GreenRequestV20180509 as Green;
use DefaultProfile;
use DefaultAcsClient;

// 阿里云账号的AccessKey ID和AccessKey Secret
$accessKeyId = '<Your AccessKey ID>';
$accessKeySecret = '<Your AccessKey Secret>';

// 创建DefaultAcsClient实例
$regionId = 'cn-shanghai';
$profile = DefaultProfile::getProfile($regionId, $accessKeyId, $accessKeySecret);
$client = new DefaultAcsClient($profile);

// 创建检测图片的请求
$request = new GreenImageSyncScanRequest();
// 设置需要检测的图片URL，可以是远程URL或者本地文件路径
$request->setImageURL('<Your Image URL>');
// 设置检测场景，如porn、terrorism、ad等
$request->setScene('porn');

try {
    // 发送检测请求
    $response = $client->getAcsResponse($request);
    // 获取检测结果
    $suggestion = $response->getImageResults()[0]->getSuggestion();
    if ($suggestion == 'block') {
        echo '图片内容违规，被拦截。';
    } else if ($suggestion == 'pass') {
        echo '图片内容合规，通过。';
    } else {
        echo '图片内容待人工审核。';
    }
} catch (Exception $e) {
    echo '图片审核请求失败：' . $e->getMessage();
}

Step 4: Execute the image audit code
Fill in the URL of the image that needs to be reviewed into the "", and then execute the following command on the command line to run the code:

php ImageAudit.php

Wait a moment and you will see the results of the image review.

Conclusion:
It is very simple to implement the image audit function by connecting to the Alibaba Cloud content security interface through PHP. The following is the main part of the code in this article:

• Create a DefaultAcsClient instance and set the AccessKey ID and AccessKey Secret of the Alibaba Cloud account.
• Create an ImageSyncScanRequest instance and set the image URL to be detected and the detection scenario.
• Send a detection request and obtain the detection results.

Note:

• Before conducting image review, you need to ensure that the SDK officially provided by Alibaba Cloud is installed.
• AccessKey ID and AccessKey Secret are important credentials for Alibaba Cloud accounts and need to be properly kept to prevent leakage.

Reference link:

• [Alibaba Cloud Official Document-Content Security API](https://help.aliyun.com/document_detail/155568.html)
• [Alibaba Cloud Official Document-PHP SDK Example](https://help.aliyun.com/document_detail/52431.html)

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