问如何使用php创建google双因素认证？

EN

curl -sS https://getcomposer.org/installer | php
php composer.phar require  phpgangsta/googleauthenticator:dev-master
Use the below code to generate the secret code.

<?php
require 'vendor/autoload.php';
$authenticator = new PHPGangsta_GoogleAuthenticator();
$secret = $authenticator->createSecret();
echo "Secret: ".$secret;
 
?>

require 'vendor/autoload.php';
$authenticator = new PHPGangsta_GoogleAuthenticator();
$secret = $authenticator->createSecret();
echo "Secret: ".$secret."\n";  //save this at server side
 
$website = 'http://hayageek.com'; //Your Website
$title= 'Hayageek';
$qrCodeUrl = $authenticator->getQRCodeGoogleUrl($title, $secret,$website);
echo $qrCodeUrl;

require 'vendor/autoload.php';
$authenticator = new PHPGangsta_GoogleAuthenticator();
 
$secret = '3JMZE4ASZRIISJRI'; //This is used to generate QR code
$otp = '183036' ;//Generated by Authenticator.
 
$tolerance = 0;
    //Every otp is valid for 30 sec.
    // If somebody provides OTP at 29th sec, by the time it reaches the server OTP is expired.
    //So we can give tolerance =1, it will check current  & previous OTP.
    // tolerance =2, verifies current and last two OTPS
 
$checkResult = $authenticator->verifyCode($secret, $otp, $tolerance);    
 
if ($checkResult) 
{
    echo 'OTP is Validated Succesfully';
     
} else {
    echo 'FAILED';
}

   source code refer this link : http://hayageek.com/two-factor-authentication-with-google-authenticator-php/

composer require robthree/twofactorauth

$tfa = new TwoFactorAuth(env('APP_NAME'));
$secret = $tfa->createSecret();
$qrCodeImage = $tfa->getQRCodeImageAsDataUri($user->email, $secret);
echo '<img src='.$qrCodeImage.' />';

$tfa = new TwoFactorAuth();
$result = $tfa->verifyCode($secret, $code);
if (empty($result)) print 'Sorry!';
else print 'Yes!';

composer require sonata-project/google-authenticator

$g = new \Google\Authenticator\GoogleAuthenticator();
$salt = '7WAO342QFANY6IKBF7L7SWEUU79WL3VMT920VB5NQMW';
$secret = $username.$salt;
echo '<img src="'.$g->getURL($username, 'example.com', $secret).'" />';

$g = new \Google\Authenticator\GoogleAuthenticator();
$salt = '7WAO342QFANY6IKBF7L7SWEUU79WL3VMT920VB5NQMW';
$secret = $username.$salt;
$check_this_code = $_POST['code'];
if ($g->checkCode($secret, $check_this_code)) {
  echo 'Success!';
} else {
  echo 'Invalid login';
}