I recently just finished the ‘People’s Choice Award’ web kiosk application for the NSW State Library. The purpose of the app is to allow the public to vote on their favourite from the Moran Prizes exhibition.

The screen cast shows the general flow of the app, it was relatively siple and includes a back end admin to display user data.

If you’ve ever used AMFPHP to connect your DB into Flash, you may stumble across weird characters being output! eg: – replaces the ’. The simple explanation is that the PHP is decoding it wrong.

Forget about preg_replace(), all you need to do is update your amfphp/gateway.php file to decode, encode in UTF-8.

$gateway->setCharsetHandler("utf8_decode", "UTF-8", "UTF-8");

and walla no more annoying characters sent from AMFPHP.

Last week I completed another little stint at the White Agency, Sydney. The brief was to create a little simple flash game that could be played through the opera browser on the Wii console. It was for a company called Sirtex Medical Ltd. and they wanted to create the game to highlight there medical technology in treating liver cancer with radiation.

The aim of the game was to kill off the cancerous tumors by injecting the proprietory Sirtex radiation spheres in the quickest time possible, using the Wii remote you needed to have find the right blood vessel and inject the radiation.

Responsible for the game development and helping with design it was a rather enjoyable little project, as it was educational in the process. The game is going to be the key part of their exhibition which is expected to be displayed at a number of medical expos in the future.

Some images containing spces in the file name led me to some errors when trying to determine their image size for manipulation using PHP.

Simply url encoding the string fixed this problem.
 

 <?php
  $imagePath = "some funky filename.jpg";
  $imagePath = str_replace(" ","%20",$imagePath);
  list($imgwidth,$imgheight) = getimagesize($imagePath);
?>

I needed to be able to access a pdf outside my document root… so I created the script below. Using just file_get_contents with an echo would just save it as the name of the script, using an $output_file variable and in the header you are able to specify what you want to save it as.

<?php
$output_file = 'outfilename.pdf';
$file = "target.pdf";
$fileDir = '../target/directory/';
$contents = file_get_contents($fileDir.$file);
header("Content-Disposition: attachment; filename=" . $output_file);
header('Content-type: application/pdf');
echo $contents;
exit();
?>

I’ve just finished the design and development of a flash based kiosk app for the State Library of NSW 100 Exhibiton. Originally I was contacted by Mental Media to do the job.

The app was fairly straight forward in process, providing the public the ability to vote on their favourite exhibiton item, view favourtie exhibiton item, complete a survey and enter a draw.

All data is saved into a mySQL database and the library staff can access a admin page to download the various data as CSV files. I had some fun with PHP merging all the tables to provide a simple usable table for the non-technical staff.

The app is running continuously for 100 days, so it was seriously important that there were no memory leaks. Flash and no memory leaks can be a time consuming effort…. At the end of the project I did encounter a memory anomaly where the memory seemed to jump 5MB every time an image was displayed on screen, although I was loading the images from memory. It turned out it was due to the fact I added a drop shadow to the image at runtime…. therefore flash somehow needed to reprocess that shadow area as a new image. This turned into a problem when I couldn’t access it, even by removing the filter, it still kept it in memory. Quick solution.. got rid of the drop shadow.

This is a model I recently built in Maya. As I’m fairly new to Maya it took a couple of weeks (part time). Modelling Lego is very satisfying, and a good place to learn modelling techniques, it helps when you can use their instructions for reference… MUCH FUN!

This is a simple function that returns yesterdays date. Simple but handy.

function yesterday()
{
 $yesterday = date("Y:m:d",mktime(0,0,0,date("m") ,date("d")-1,date("Y")));
 return $yesterday;
}

In a recent project I needed to capture how long the user spent on the application, it was not expected they would spend days on it so it return hours minutes seconds which can be saved to a database.
So basically here is a function to do that…

//
echo getTimeDifference("2010-02-26 18:35:36");

function getTimeDifference($start_time){

 //convert $start_time into a usable string
 $tempStart = preg_replace('/(\d{2})-(\d{2})-(\d{2})(.*)/', '$1:$2:$3:$4',$start_time);
 $tempStart=explode(":",$tempStart);

 $year = $tempStart[0];
 $month= $tempStart[1];
 $day = $tempStart[2];
 $hour = $tempStart[3];
 $minute = $tempStart[4];
 $second = $tempStart[5];

 //set the end time as current time
 $timesEnd = date("Y:m:d:H:i:s");
 $tempEnd=explode(":",$timesEnd);

 $year1 = $tempEnd[0];
 $month1= $tempEnd[1];
 $day1 = $tempEnd[2];
 $hour1 = $tempEnd[3];
 $minute1 = $tempEnd[4];
 $second1 = $tempEnd[5];

 $countdown_date = mktime($hour, $minute, $second, $month, $day, $year);
 $countdown_date1 = mktime($hour1, $minute1, $second1, $month1, $day1, $year1);

 $diff = $countdown_date1 -$countdown_date ;
 if ($diff < 0)
 $diff = 0;
 $dl = floor($diff/60/60/24);
 $hl = floor(($diff - $dl*60*60*24)/60/60);
 $ml = floor(($diff - $dl*60*60*24 - $hl*60*60)/60);
 $sl = floor(($diff - $dl*60*60*24 - $hl*60*60 - $ml*60)
 );

 $timeDifference = "$hl:$ml:$sl";

 return $timeDifference;
 }