glebkema

<?php
/*
Plugin Name: Really Simple CSV Importer Debugger add-on
Description: Enables to dry-run-testing with Really Simple CSV Importer. When this add-on plugin activated, csv data will not imported, just displayed on dashboard.
Author: Takuro Hishikawa
Version: 0.2.1
*/

class rscsvimporter_debug {
	// singleton instance

glebkema

<?php
// Answer for https://www.gutefrage.net/frage/wie-kann-man-einen-php-token-generator-machen#answer-352860809

// Encrypt and decrypt all digits in the expiration time by the Affine cipher
// https://en.wikipedia.org/wiki/Affine_cipher
// https://stackoverflow.com/a/23679870/6263942

// encypt and decrypt the digit by the Affine cipher
function encrypt_digit( $digit ) {
    return ( 7 * $digit ) % 10;