updated – now with post properties/variables support. no setup, no API keys, no extra PHP modules for generating images | works in posts, pages, sidebars, custom post types and theme PHP files | the_qrcode() and get_qrcode() for PHP files | support for: email, SMS, phone, links and of course plain text | customizable size, quality and bg color | super fast utilizing Google API | support for custom field variables as shortcode parameters