PHP method to implement SMS verification code function through cloud service platform

With the development of Internet technology, SMS verification codes have become one of the important verification methods in Internet applications. During the development process, how to quickly and effectively implement the SMS verification code function has become a problem we need to face. In response to this problem, this article will introduce how to implement the SMS verification code function through PHP and cloud service platforms.

1. Understand the cloud service platform

The cloud service platform is an Internet-based service model that provides applications, services and solutions suitable for multi-party scenarios through the integration and scheduling of cloud computing resources. plan. Compared with traditional IT architecture, cloud computing architecture has the advantages of high security, fast deployment, and low cost. Therefore, we can realize various functions through the cloud service platform, including SMS verification code function.

2. Select the API interface provided by the cloud service platform

Before implementing the SMS verification code function, we need to choose a reliable cloud service platform and understand the API interface provided by the platform. There are currently many cloud service platforms on the market, such as Alibaba Cloud, Tencent Cloud, Baidu Cloud, etc. These platforms all provide SMS sending API interfaces for us to use. Here, we take Alibaba Cloud as an example to introduce the specific implementation process.

3. Use PHP to implement the SMS verification code function

1. Establish a connection with Alibaba Cloud

Before using the Alibaba Cloud API, we need to obtain the AccessKey and AccessSecret. AccessKey and AccessSecret are the authentication keys for Alibaba Cloud API and can be applied for in the Alibaba Cloud console. After obtaining the key, we can use PHP to connect.

First, we need to write a function send_sms() to connect. The code is implemented as follows:

function send_sms(){
    $accessKeyId ="your_accessKeyId";
    $accessKeySecret ="your_accessKeySecret";

    // 连接阿里云接口的URL
    $url ="https://dysmsapi.aliyuncs.com/";

    // 定义参数数组
    $params = array(
        'PhoneNumbers' => '155xxxxxxx',
        'SignName' => '你的签名',
        'TemplateCode' => 'SMS_171112345',
        'TemplateParam' => '{"code":"123456"}',
        'AccessKeyId' => $accessKeyId,
        'SignatureMethod' => 'HMAC-SHA1',
        'Timestamp' => gmdate("Y-m-dTH:i:sZ"),
        'SignatureVersion' => '1.0',
        'SignatureNonce' => uniqid(),
        'Action' => 'SendSms',
        'Version' => '2017-05-25',
    );

    // 根据参数数组生成URL签名串
    $params["Signature"] = compute_signature($params, $accessKeySecret);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url.'?'.http_build_query($params));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    $output = curl_exec($ch);
    curl_close($ch);
    return $output;
}

// 计算请求签名
function compute_signature($parameter, $accessKeySecret){
    ksort($parameter);
    $canonicalQueryString = '';
    foreach($parameter as $key => $value){
        $canonicalQueryString .= '&' . rawurlencode($key) . '=' . rawurlencode($value);
    }
    $stringToSign = 'GET&%2F&' . rawurlencode(substr($canonicalQueryString, 1));
    $signature = base64_encode(hash_hmac('sha1', $stringToSign, $accessKeySecret . '&', true));
    return $signature;
}

2. Send SMS verification code

After the connection is successful, we can use the SMS sending template provided by Alibaba Cloud to send the SMS verification code. Here, we take Alibaba Cloud as an example and write a function send_verify_code() to send SMS verification code. The code is implemented as follows:

function send_verify_code($mobile, $code){
    $params = array(
        'PhoneNumbers' => $mobile,
        'TemplateCode' => 'SMS_17111xxxx', // 短信模板ID
        'SignName' => '填写你的签名', // 短信签名
        'TemplateParam' => '{"code":"'.$code.'"}' // 短信模板变量对应的实际值
    );
    $result = json_decode(send_sms($params));
    if($result->Code == 'OK'){
        return true;
    } else {
        return false;
    }
}

The above is all the code that uses PHP and Alibaba Cloud SDK to implement the SMS verification code function. We only need to fill in the corresponding parameters according to our actual needs. When using it, we only need to call the send_verify_code($mobile, $code) function to implement the SMS verification code function.

4. Summary

This article introduces how to use PHP and cloud service platform to implement the SMS verification code function, and connect through the API interface of Alibaba Cloud. What needs to be noted during the implementation process is that we need to obtain the AccessKey and AccessSecret of the API, and write a function to calculate the signature. At the same time, we also need to fill in the corresponding parameters according to our actual needs, so as to realize the customized SMS verification code function.

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