PHP code example of kelunik / two-factor

1. Go to this page and download the library: Download kelunik/two-factor library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

kelunik / two-factor example snippets


$oath = new Oath;

// this generates a key in binary format
$key = $oath->generateKey();

// store key for user


$oath = new Oath;
$key = "..."; // load user key from storage

// Use the URI to provide an easy to scan QR code
$uri = $oath->getUri($key);

// Alternatively display the key for manual input
$secret = $oath->encodeKey($key);


$oath = new Oath;
$key = "..."; // load user key from storage
$isValid = $oath->verifyTotp($key, $totpValue);
// If the token is valid, ensure that it can't be used again.
// Because we use the default grace window size of two,
// we have to store the used TOTP value for at least 90 seconds,
// to prevent its usage explicitly.