QRCode Generator in Php

phpqrcode http://phpqrcode.sourceforge.net/ can be used to generate qrcode in php.

It supports to generate the code and save to external file or export to browser.

ob_start();

\PHPQRCode\QRcode::png('http://www.chatcai.tk/player-chatroom/register?code='.$model->invitation_code, null, 'L', 4, 2);

$imageString = base64_encode( ob_get_contents() );

ob_end_clean();