PHP code example of delight-im / otp

1. Go to this page and download the library: Download delight-im/otp 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/ */

delight-im / otp example snippets


\Delight\Otp\Otp::createSecret();
// string(32) "WQ2S54TEQYY4Z2PWHB2Y6W443ZCEKJCQ"


// or


\Delight\Otp\Otp::createSecret(\Delight\Otp\Otp::SHARED_SECRET_STRENGTH_HIGH);
// string(32) "X4YSNUYTL6NE2PF7PMFN4QDUD3WPUR75" (160 bits or 20 bytes)

// or

\Delight\Otp\Otp::createSecret(\Delight\Otp\Otp::SHARED_SECRET_STRENGTH_MODERATE);
// string(26) "7OX7TNZAKKXFAWH2P4RB4VR2DE" (128 bits or 16 bytes)

// or

\Delight\Otp\Otp::createSecret(\Delight\Otp\Otp::SHARED_SECRET_STRENGTH_LOW);
// string(16) "3KXNADOF5GTCCTKZ" (80 bits or 10 bytes)


\Delight\Otp\Otp::createTotpKeyUriForQrCode('app.example.com', '[email protected]', $storedSecret);
// string(116) "otpauth://totp/app.example.com:john.doe%40example.org?secret=T7...4D&issuer=app.example.com"


\Delight\Otp\Otp::verifyTotp($storedSecret, '390108');
// bool(true)


$lookBehindSteps = 3;
$lookAheadSteps = 3;
$currentTime = \time();
$otpLength = 8;
$refreshInterval = 60;
$epoch = 0;
$hashFunction = \Delight\Otp\Otp::HASH_FUNCTION_SHA_512;

\Delight\Otp\Otp::verifyTotp(
    $storedSecret,
    '38618901',
    $lookBehindSteps,
    $lookAheadSteps,
    $currentTime,
    $otpLength,
    $refreshInterval,
    $epoch,
    $hashFunction
);
// bool(true)