How to use PHP to develop mobile phone text message sending function

How to use PHP to develop mobile phone text message sending function

With the popularity of mobile Internet, mobile phone text messages have become one of the important means of people's daily communication. As developers, we can use PHP language to develop the SMS sending function of mobile phones to implement practical functions such as SMS verification codes and SMS notifications. This article will introduce how to use PHP to develop mobile phone text message sending function, and provide code samples for readers' reference.

First of all, we need an account with an SMS service provider in order to send mobile text messages. There are currently many SMS service providers on the market, such as Alibaba Cloud, Tencent Cloud, etc. We choose a suitable SMS platform, register an account and obtain an SMS API key.

Next, we need to understand how to call the SMS API. Generally speaking, SMS API providers will provide a set of documents, which include the API calling address, request parameters, return parameters and other information. We need to build our API calling code based on this information.

The following is a sample code for sending text messages using Alibaba Cloud SMS API:

<?php

// 阿里云短信API的请求地址
$url = "https://dysmsapi.aliyuncs.com/";

// 阿里云短信API的Access Key ID和Access Key Secret
$accessKeyId = "your_access_key_id";
$accessKeySecret = "your_access_key_secret";

// 短信签名和模板ID
$signName = "your_sign_name";
$templateCode = "your_template_code";

// 短信接收号码和短信内容
$phoneNumbers = "your_phone_number";
$code = "your_verification_code";

// 生成签名
$timestamp = gmdate("Y-m-dTH:i:sZ");
$nonce = uniqid();
$stringToSign = "POST" . "&" . rawurlencode("/") . "&" . rawurlencode("AccessKeyId=" . $accessKeyId . "&Format=JSON&Action=SendSms&RegionId=cn-hangzhou&SignName=" . $signName . "&SignatureMethod=HMAC-SHA1&SignatureNonce=" . $nonce . "&SignatureVersion=1.0&TemplateCode=" . $templateCode . "&Timestamp=" . $timestamp . "&Version=2018-05-01");
$sign = base64_encode(hash_hmac("sha1", $stringToSign, $accessKeySecret . "&", true));

// 构建请求参数
$params = array(
    "Action" => "SendSms",
    "SignName" => $signName,
    "TemplateCode" => $templateCode,
    "PhoneNumbers" => $phoneNumbers,
    "TemplateParam" => "{"code":"" . $code . ""}",
    "AccessKeyId" => $accessKeyId,
    "SignatureMethod" => "HMAC-SHA1",
    "SignatureType" => "HMAC-SHA1",
    "SignatureVersion" => "1.0",
    "Timestamp" => $timestamp,
    "Format" => "JSON",
    "RegionId" => "cn-hangzhou",
    "Version" => "2018-05-01",
    "SignatureNonce" => $nonce,
    "Signature" => $sign
);

// 发送请求
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);

// 解析返回结果
$result = json_decode($response, true);
if ($result["Code"] === "OK") {
    echo "短信发送成功！";
} else {
    echo "短信发送失败，错误信息：" . $result["Message"];
}

?>

In the above code, we first need to fill in the request address, Access Key ID and Access of Alibaba Cloud SMS API Key Secret, SMS signature and template ID, SMS receiving number and SMS content. Then, we generate a signature and build the request parameters based on the signature algorithm provided by the API documentation. Finally, use the cURL library to send the request and parse the returned results.

It should be noted that the above is just a sample code, and the actual code may differ depending on the SMS service provider. Therefore, during the development process, please be sure to refer to the API documentation of the specific SMS service provider to make calls.

To sum up, it is not difficult to use PHP to develop the mobile phone text message sending function. You only need to obtain the calling method of the SMS API and write the API calling code. I hope this article can help readers better use PHP to develop mobile phone text message sending functions.

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