PHP code example of pforret / digestif

1. Go to this page and download the library: Download pforret/digestif 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/ */

pforret / digestif example snippets


use Pforret\Digestif\Digestif;

$dig = new Digestif(env("DIGEST_SEED"));
// seed value should be unique for that server/application.
// It's important that it is not known to the outside world.
// It should be the same for the application creating the Digest as the one reading/verifying it 

$url = "https://secure.example.com/invoice/1200323";
// if you make your URL like this, the URL for the other invoices can be guessed (e.g. 1200324, etc)

$digest = $dig->fromString($url);
$secure_url = "$url/$digest";
// URL = https://secure.example.com/invoice/1200323/0a1b-2c3d
// using a route /invoice/{id}/{digest} will allow you to verify the digest
// the URL of the next invoice 1200324 cannot be guessed without knowing the seed value

// or use this
$secure_url = "$url?$digest";
//URL = https://secure.example.com/invoice/1200323?0a1b-2c3d
// and then verify the digest before showing the actual invoice
if(!$dig->compareDigest($dig->fromString($url), $digest)){
    return false;
}
// 0a1b-2c3d will be ok, as 0a1b2c3d (without dash)