<?php namespace PragmaRX\Google2FAQRCode\QRCode; interface QRCodeServiceContract { /** * Generates a QR code data url to display inline. * * @param string $string * @param int $size * @param string $encoding Default to UTF-8 * * @return string */ public function getQRCodeInline($string, $size = 200, $encoding = 'utf-8'); }