Remove Whitespace from IBAN

[Florian1990]

IBANs are often grouped via space characters for better readability. For use in the QR code they have to be removed (if present) in order to be standard compliant and work with all banking apps.

Something like the following could work for this (untested):

function muxp_create_qrcode ($amount,$orderid, $muxp_PURPOSE_PREFIX) {

(…)

  $iban = preg_replace('/\s+/', '', $iban);  

  require_once(dirname(__FILE__) . "/vendor/bezahlcode/bezahlcode.class.php");
  
  $bezahlcode = new Bezahlcode($iban, $bic, $company, "phpqrcode", false);

(…)

[Coernel82]

Can you make a pull request?

[Florian1990]

I opened pull request #24 . I am still waiting for @reichemn to confirm this change does fix the issue. Feel free to merge.