PHP code example of paragonie / anti-csrf

1. Go to this page and download the library: Download paragonie/anti-csrf 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/ */

paragonie / anti-csrf example snippets


use \ParagonIE\AntiCSRF\AntiCSRF;
$twigEnv->addFunction(
    new \Twig\TwigFunction(
        'form_token',
        function($lock_to = null) {
            static $csrf;
            if ($csrf === null) {
                $csrf = new AntiCSRF;
            }
            return $csrf->insertToken($lock_to, false);
        },
        ['is_safe' => ['html']]
    )
);


    $csrf = new \ParagonIE\AntiCSRF\AntiCSRF;
    if (!empty($_POST)) {
        if ($csrf->validateRequest()) {
            // Valid
        } else {
            // Log a CSRF attack attempt
        }
    }

twig
<form action="/addUser.php" method="post">
    {{ form_token("/addUser.php") }}

    {# ... the rest of your form here ... #}
</form>