Super Cool QRCode (WP Plugin)
Attention: this plugin is still experimental, it can behave strangely, use at your own risk.
A QR Code is a matrix code (or two-dimensional bar code) created by Japanese corporation Denso-Wave in 1994. The “QR” is derived from “Quick Response”, as the creator intended the code to allow its contents to be decoded at high speed. QR Codes are common in most mobile phones that can read this code with their camera.
Excerpt from Wikipedia Article
The “Super Cool QRCode” use the Google Chart API to generate on-the-fly QR codes for your blog. You can encode any type of strings that can be readed in a large array of devices.
Features
You can create QR codes with:
- A Widget
- A Shortcode
- A PHP Function
Download
Instalattion
- Upload super-cool-qrcode.X.X.X.zip through Wordpress interface or install it directly from the plugin area
- Activate it through the ‘Plugins’ menu
- Visit the settings page in the admin area at Settings > S. Cool QR Code and configure it
Changelog
- 0.0.6
- Minor code erros fixed
- 0.0.5
- PHP error fixed
- 0.0.4
- Some links error fixed
- 0.0.2
- First public release
Screenshots
QR Code
Usefull Links
- ZXing Decoder Online: here you can test your QR codes
Observation
I’m no professional programmer, this plugin is mantained in the little spare time that I have between work and university and neither is english my native language so ANY suggestion for the plugin coding or text will be appreciated.
Plugin is working well; thanks for your efforts, but I get tons of header errors when logging out of Admin in WP:
Warning: Cannot modify header information – headers already sent by (output started at /home/chadeby/public_html/courses/wp-content/plugins/super-cool-qrcode/super-cool-qrcodes.php:1) in /home/chadeby/public_html/courses/wp-login.php on line 290
[ . . . ]
Warning: Cannot modify header information – headers already sent by (output started at /home/chadeby/public_html/courses/wp-content/plugins/super-cool-qrcode/super-cool-qrcodes.php:1) in /home/chadeby/public_html/courses/wp-includes/pluggable.php on line 865
I want to use the plugin, but It’s a little worrisome…
If enabled, the WP-Stats flash graph is not visible. If disabled, the stats graph is visible. Thes affects dashboard as well as stats page.
I have two categories, one is called “heisefizierung”, and one is called “blabla”, i set size to 170, encoding to UTF-8 and Error correction to H. Margin is 1, link is “false”, target is “_blank” and “border” is 0.
Why does the QR code of “blabla” fill the whole QR code image in this category, and why is there a big white border around the QR code while viewing category “heisefizierung”?
I noticed that on some of my other categories too, that the QR code is sometimes in other sizes (the QR code image itself is always the same size, only the size of the QR code itself changes).
I am trying to get the online decoder zxing.org/w/decode.jspx to work but for some reasons it tries to download some ‘decode’ info.
I actually get a download screen. Only I can’t open it.
It gives me the options Search, Save, Cancel..
Is there some option I have got to enable or disable ?
@shigeru
thanks for the reply, this plugin is in “alpha”stage, but this weekend i will work a little on it. will see what i can do :D
I tried to use on Japanese WordPress 2.7.1 and am getting repeated PHP header error upon HTTP FORM submission in Admin interface. Could you take a look? I tried to use your latest 0.0.6.
Works great, thank you