Andy's blog o' goodness – Page 11 – php, web stuff, raspberry pi… even blacksmithing!

August 13, 2007

Easy chained select lists using Zend Framework and Prototype

Building a set of select lists that are dependant of each other can be a daunting task, but for a simple two-level list – in that what you select from one drop-down will changing what’s displayed in one or more other drop-downs – is actually quite easy thanks to Zend Frameworks and Prototype, both of which support Json.

javascript/PHP/Prototype/Zend Framework Comment: 1

June 22, 2007

Create a random thumbnail of a video file

Create a random thumbnail of a video file Looking at sites like YouTube, you may think it’s quite hard to create a lot of different thumbnails from video files, and have them from random times within that file. But, no, it’s not! As this article shows, by using the very fabulous FFmpeg library, it’s actually a very short amount of...

Code snippets/PHP Comments: 16

June 15, 2007

Slider – part 2 – using a mouse wheel

Following on from the previous post, I thought it’d be nice to have the handle move on a mouse wheel. Looking around for mouse wheel integration, it seems that it’s only a short amount of code to update Prototype to use the mouse wheel. Why it’s not in the core code I don’t know, as it seems rather handy. The...

Experiments/javascript/Prototype Comments: 0

June 14, 2007

Scriptaculous slider trick

Yesterday I was looking at the Scriptaculous library, in particular the slider bar. I had used it once before with some success, using a graphic for the track and gripper. But that’s was boring! What I wanted was to see the bar fill up with colour when it was slid. Something like this: I hadn’t seen anything like this around...

Experiments/javascript/Prototype Comments: 15

June 5, 2007

Create a registration key

This simple function allows you to generate a random registration key in the format, ‘1224-54B1-7D35-5EF7’.

Code snippets/PHP Comments: 0

June 5, 2007

Validate a UK postcode

You’ve probably seen this before, if not a thousand times, but here’s a simple function to check the format of a UK postcode.

Code snippets/PHP Comments: 0

April 26, 2007

Briard puppies

I’ve just launched a new web site for my mother-in-law to advertise and show off the new litter from her champion Briard show dog.Â And let me tell you, the puppies are adorable! http://www.classicshowdogs.com/

Sites Comments: 0

March 20, 2007

Nice image swapping

Here’s a nice, clean, and simply way to swap an image on a click of a link. You might use this if you have one large image a series of thumbnails, and when you click on the thumbnail you want to swap the large image. This javascript will do that and you don’t even need any additional libraries!

javascript Comments: 0

March 20, 2007

HTTP status codes

Quite often I find myself having to send a HTTP status code in the PHP I’m writing. This typically comes down to usually a ‘Forbidden’, ‘No Content’ or a redirect. The trouble is, I usually can’t remember the exact code of text used for the slightly more obscure codes, or at least the ones I don’t use often… Well, even...

PHP Comments: 0

March 20, 2007

String encoding for HTML

I find this a handy function to encompass a number of different string encoding routines. It allows you to do entity encoding (Ã¿), hex (Ã¡), html (&aecute;), or url encoding (%E1).

PHP Comments: 0