Use Wa QRcode as shortcode in post content or widget area without editing your theme files
USAGE: Use [qrcode] OR [qrcode content="Put your content for QR code" size="80" alt="ALT_TEXT" class="classname"]
shortcode in your post content to show the QR Code without editing your theme files
EXAMPLE: [qrcode] it will qr code of current page url OR [qrcode content="Put your content for QR code" size="80" alt="ALT_TEXT" class="classname"]
size = Size is given for the size of QR Code it should be in Pixel
alt = tool tip on Generated QR code => Default Value "Scan the QR Code"
Classname = it will user defined class to Captcha for better css controll
Shadow = true
OR
Place below function in your theme file where you want to display QR code.
'your custom content','size'=>75)) ?>
OR
By using QR code button in Editor