Open Web Analytics is an open source framework that developers can use to integrate web analytics into any application.

It is built with PHP & besides the standalone usage, it has built-in support for WordPress, Gallery & MediaWiki.

OWA comes with 2 APIs:

• PHP: which makes it easier to integrate into any PHP application
• JavaScript: for usage in non PHP pages/websites

It has powerful tracking/reporting features like heat maps, multiple websites, Google Maps integration, RSS/Atom subscription tracking &standard ones like:

• page views, visits, and unique visitors over time
• unique, new, repeat visitors over time
  
• Click-streams – view the actual click-stream of each visitor
• Click Tracking – Track where exactly on a web page users are clicking and view clicks by browser type
• Click Heat Maps – view a heat map of where users are clicking on your web pages
  
• Visitor Aging – understand the age of your repeat visitors.
• Canned and Custom Time Periods – generate reports using pre-defined reporting periods or custom date ranges
• Refering Page Analysis – View the title, anchor text, and surrounding text of inbound links from refering web pages
• View visits by user agent
• Track entry and exit pages
• Track pages by custom page type

The frameworks uses other open source resources like Open Flash Chart or PHP Mailer & requires PHP 4.2.2+ with GD enabled to run. 

Imagin is a feature-rich & free Flash gallery which can be customized easily.

It supports multiple galleries with sub- galleries, can display jpg, png, gif, swf, flv, mp4 files & can present them as a slideshow.

This gallery application uses PHP at the backstage for loading images & automatic thumbnail generation.

Galleries & sub-galleries are folders and files are loaded via FTP. Imagin does the rest for scanning the related folders & shoing them accordingly.

Some features of Imagin

• Few images are loaded in advance for faster navigation
• Images can have a small description
• Full screen mode
• Basic html view of images
• Full browser resizable interface
• Right click menu. Link to an image or a gallery can be sent directly
• Keyboard navigation (space, arrows, enter, escape)
• Images scales down automaticaly to fit the browser size, or not if you don’t want

To see its power, check the demos.

Easy Reflections, a PHP script that enables you to create reflections (Web 2.0 look) of any image.

Supported image types are GIF, JPG & PNG.

There is a built-in caching mechanism to prevent creating same images again & again.

And, fade levels used can be configured.

The script works with both PHP4 & PHP5 and requires GD extension 2.0.1+ installed.

Smart image resizer is a PHP script which makes it very easy to resize & crop images. And, this is done without touching the original image.

The width & height of the image to be resized is mentioned in the img tag like:

<img src="/image.php/coffee.jpg?width=200&height=200ℑ=//uploads/coffee.jpg" alt="Coffee" />

and image is resized via the GD library.

Newly created image is stored in a cache directory & won’t be re-created until new dimensions are mentioned to improve the system performance.

Cropping an image also warks the same way. Simply mention the crop ratio & that’s all.

Smart Image Resizer supports JPG, GIF & PNG images and requires PHP 5.1.0+ to run.

FLIR (Facelift Image Replacement) is an image replacement script that enables you to use any font in your websites.

It is similar to sIFR but uses JavaScript + PHP rather than Flash.

Fonts to be used are pre-uploaded and a PHP script creates the image using these fonts. Later on the image is inserted via JavaScript.

PHP GD library can not render some fonts properly. For this reason FancyFonts plugin (optional & requires ImageMagick) is also integrated to FLIR and it can handle almost any font.

WideImage is an object-oriented PHP image library.

It is written in PHP 5 and requires only GD2 library for manipulating images.

The library is very suitable for new generation web applications (for easier mashups) as it supports loading images from any URL besides loading them from a file, string or a valid image source.
 

Some features of WideImage:

• Transformations: crop, resize, rotate, flip, mirror
• Conversions: graysclae, negative, truecolor, palette
• Colors/channels: merge, mask, filter, get channels, correct gamma…

pChart is an open source PHP chart library for creating aliased charts.

This chart classes run on any webserver that has PHP & GD library support.

Chart types currently support by this PHP charts solution are:

• Line chart
• Cubic curve chart
• Plot chart
• Bar chart
• Filled line chart
• Filled cubic curve chart
• Pie chart
• Radars chart
• Limits chart

For faster display of charts, pChart has a caching class named pCache which serves a chart from cache if it was rendered before with the same data.

This project is still in development (for ex: pie charts are in beta) but updated frequently and, even now, looks very functional.

PHP classes are well documented and they can be tested in a live test area.

Phototype is a client/server-side image manipulation library, based on Prototype and supports all kinds of image manipulations.

How it works?

Clientside JavaScript codes sends the commands to the serverside PHP – GD library image renderer and displays the rendered image.

Using Phototype, you are able to rotate, resize, flip and do some other cool effects to images.