PHP code example of marektichy / totp-php

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

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

    

marektichy / totp-php example snippets

use RemoteMerge\Totp\TotpFactory;

// Create a new TOTP instance
$totp = TotpFactory::create();

// Generate a new secret key for the user
$secret = $totp->generateSecret();

// Output the secret key
echo "Generated Secret Key: $secret\n";

use RemoteMerge\Totp\TotpFactory;

// Create a new TOTP instance
$totp = TotpFactory::create();

// Example secret key
$secret = 'JBSWY3DPEHPK3PXP';

// Generate a TOTP code
$code = $totp->getCode($secret);

echo "Generated TOTP Code: $code\n";

use RemoteMerge\Totp\TotpFactory;

// Create a new TOTP instance
$totp = TotpFactory::create();

// Example secret key and code
$secret = 'JBSWY3DPEHPK3PXP';
$code = '123456';

// Verify the code
$isValid = $totp->verifyCode($secret, $code);

echo $isValid ? "✅ Code is valid!\n" : "❌ Code is invalid!\n";

use RemoteMerge\Totp\TotpFactory;

// Create a new TOTP instance
$totp = TotpFactory::create();

// Example secret key and user information
$secret = 'JBSWY3DPEHPK3PXP';
$uri = $totp->generateUri($secret, '[email protected]', 'YourApp');

echo "QR Code URI: $uri\n";

use RemoteMerge\Totp\TotpFactory;

$totp = TotpFactory::create();

// Configure the algorithm
$totp->configure(['algorithm' => 'SHA256']);

$secret = $totp->generateSecret();
$code = $totp->getCode($secret);

echo "Generated TOTP Code (SHA256): $code\n";

use RemoteMerge\Totp\TotpFactory;

$totp = TotpFactory::create();

// Configure the code length
$totp->configure(['digits' => 8]);

$secret = $totp->generateSecret();
$code = $totp->getCode($secret);

echo "Generated 8-Digit TOTP Code: $code\n";

use RemoteMerge\Totp\TotpFactory;

$totp = TotpFactory::create();

// Configure the time slice duration
$totp->configure(['period' => 60]);

$secret = $totp->generateSecret();
$code = $totp->getCode($secret);

echo "Generated TOTP Code (60-second period): $code\n";

use RemoteMerge\Totp\TotpFactory;

$totp = TotpFactory::create();

$secret = 'JBSWY3DPEHPK3PXP';
$code = '123456';

// Allow discrepancy of 1 time slice
$isValid = $totp->verifyCode($secret, $code, 1);

echo $isValid ? "✅ Code is valid!\n" : "❌ Code is invalid!\n";

use RemoteMerge\Totp\TotpFactory;

$totp = TotpFactory::create();

$secret = 'JBSWY3DPEHPK3PXP';
$code = '123456';

// Load the last accepted time slice from persistent storage (e.g. database).
// Use 0 on first login.
$lastAcceptedSlice = (int) $user->getLastTotpSlice();

$newSlice = $totp->verifyCodeOnce($secret, $code, $lastAcceptedSlice);

if ($newSlice === null) {
    echo "❌ Code is invalid or has already been used!\n";
} else {
    // Persist the new slice to block future reuse of this code.
    $user->setLastTotpSlice($newSlice);
    echo "✅ Code accepted!\n";
}

use RemoteMerge\Totp\TotpFactory;

$totp = TotpFactory::create();

$secret = 'JBSWY3DPEHPK3PXP';

$audit = $totp->auditSecret($secret);

echo "Decoded length: {$audit['length_bytes']} bytes\n";
echo "Strong secret: " . ($audit['is_strong'] ? 'Yes' : 'No') . "\n";

foreach ($audit['warnings'] as $warning) {
    echo "⚠️  Warning: $warning\n";
}

use RemoteMerge\Totp\Totp;

// Restrict the maximum allowed discrepancy to 2 time slices
$totp = new Totp(['max_discrepancy' => 2]);

$secret = $totp->generateSecret();
$code = $totp->getCode($secret);

// discrepancy of 1 is within the limit — works normally
$isValid = $totp->verifyCode($secret, $code, 1);

// discrepancy of 3 exceeds the limit — throws TotpException
$totp->verifyCode($secret, $code, 3);

use RemoteMerge\Totp\TotpFactory;

$totp = TotpFactory::create();

$secret = 'JBSWY3DPEHPK3PXP';
$uri = $totp->generateUri($secret, '[email protected]', 'YourApp');

$qrCodeUrl = "https://api.qrserver.com/v1/create-qr-code/?size=200x200&data=" . urlencode($uri);

echo "QR Code Image URL: $qrCodeUrl\n";

bash
composer 

text
QR Code URI: otpauth://totp/YourApp:user%40example.com?secret=JBSWY3DPEHPK3PXP&issuer=YourApp&algorithm=SHA1&digits=6&period=30

bash
   git clone [email protected]:remotemerge/totp-php.git
   cd totp-php
   

bash
   git clone [email protected]:remotemerge/totp-php.git
   cd totp-php