How to send SMS verification code using PHP

How to send SMS verification code using PHP

With the development of mobile Internet, SMS verification code has become a common authentication method in many applications. By sending an SMS verification code, users can confirm their mobile phone number and verify their identity. In this article, we will learn how to send SMS verification codes using PHP and provide specific code examples.

To achieve this goal, we will use the API provided by the SMS service provider. SMS service providers can provide the functionality to send text messages to mobile phones and allow us to integrate into our own applications through APIs.

The following is a code example using Twilio SMS service provider:

First, you need to register an account on Twilio's official website and obtain your account SID and authentication token. This information will be used for authentication and sending text messages.

Create a new file in your PHP project, name it send_sms.php, and copy the following code into the file:

/ / Import Twilio library
require 'vendor/autoload.php';

use TwilioRestClient;

// Twilio account SID and authentication token
$sid = 'your_account_sid';
$token = 'your_auth_token';

// Create Twilio client
$client = new Client($sid, $token);

// Send verification code Mobile number
$toPhoneNumber = " 1234567890";

// Generate 6-digit verification code
$code = rand(100000, 999999);

// Send SMS
$message = $client->messages->create(

$toPhoneNumber,
[
    'from' => '+0987654321', // 在Twilio控制台上购买的号码
    'body' => '您的验证码是: ' . $code
]

);

echo 'Verification code has been sent! ';

In the above code, we first imported Twilio's PHP library. You can download the library from Twilio's official Github page and install it in your project.

We then set up the Twilio account's SID and authentication token, and created a Twilio client using this information.

Next, we specified the mobile phone number to which the verification code was sent, and used the rand function to generate a 6-digit random verification code.

Finally, we call the messages->create method of the Twilio client to send the message to the mobile phone number we specified. We need to provide the sender number and the content to be sent. In this example, we use string concatenation to add the verification code to the message.

Finally, we open the send_sms.php file on the browser to send the SMS verification code.

The above is the whole process of how to use PHP to send SMS verification code. You can adjust and modify the code accordingly according to your needs and the SMS service provider you use.

Summary: Sending SMS verification codes is a very practical authentication method that can increase the security of the application. We can easily implement this functionality by using PHP and SMS service provider's API. Hope this article can be helpful to you!

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