Dynamically generating a QR code with PHP [closed]

I'm trying to generate QR codes on my website. All they have to do is have a URL in them, which a variable on my site will provide. What would be the easiest way to do this?

Solution 1:

It's worth adding that, in addition to the QR codes library posted by @abaumg, Google provides a QR Codes API QR Codes API^{many thanks to @Toukakoukan for the link update}.

To use this , basically:

https://chart.googleapis.com/chart?chs=300x300&cht=qr&chl=http%3A%2F%2Fwww.google.com%2F&choe=UTF-8

• 300x300 is the size of the QR image you want to generate,
• the chl is the url-encoded string you want to change into a QR code, and
• the choe is the (optional) encoding.

The link, above, gives more detail, but to use it just have the src of an image point to the manipulated value, like so:

<img src="https://chart.googleapis.com/chart?chs=300x300&cht=qr&chl=http%3A%2F%2Fwww.google.com%2F&choe=UTF-8" title="Link to Google.com" />

Demo:

Solution 2:

The easiest way to generate QR codes with PHP is the phpqrcode library.