Andy's blog o' goodness – Page 12 – php, web stuff, raspberry pi… even blacksmithing!

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’. [php]function registration_key() { return strtoupper(substr(chunk_split(sprintf(‘%03d%s’, rand(0,999), uniqid(”)), 4, ‘-‘), 0, -1)); }[/php]

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 lang=”php”]function valid_uk_postcode($postcode) { return (preg_match(‘/^([A-PR-UWYZ][A-HK-Y0-9][AEHMNPRTVXY0-9]?[ABEHMNPRVWXY0-9]? {0,2}[0-9][ABD-HJLN-UW-Z]{2}|GIR 0AA)$/i’, $postcode)) ? true : false; }[/code]

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

February 27, 2007

CafePress random product update

A small update is required to the CafePress box class – the one that shows a random product from your CafePress store. This is needed because there have been some additional updates to the HTML on the CafePress side, so the regular expression in the class needs updating. It’s very easy; just change line 174 for the following: $this->cpPattern =...

PHP/Updates Comments: 0

February 9, 2007

Same height for elements

Surely this is easy, right? Just set the height property in your css. Well, yes and no. That’s all well and good if you know what height the elements are going to be, but quite often you might be pulling information out of a database in to the elements and you don’t know how big that information is going to...

javascript/Prototype Comment: 1