The CImage.php is a class that can resize and crop images and output them to a webpage. The class preserves a cache of the generated images and responds with HTTP 304 if the image has not changed.

The file img.php uses CImage.php to resize images. It is a usecase on how to use the class. img.php is useful for webpages which want to dynamically resize the images.

The file test.php has testcases that show the results of img.php with different settings.

The file example.php makes an example on how to use and integrate img.php with your website and shows why this might be a handy tool for content providers.

Start by reading the example.php, proceed by reviewing the test.php, then have a look at img.php and finally go through CImage.php.

Enjoy!

Mikael Roos (mos@dbwebb.se)

Revision history

ToDo.

Pre-defined sizes.
crop-to-fit, add parameter for offset x and y to enable to define which area is the center of the image from which the crop is done.
Show how to integrate with WordPress.

v0.3 (2012-08-28)

Added crop. Can crop a area (width, height, start_x, start_y) from the original image.
Corrected to make the 304 Not Modified header work.
Added example.phpto walk through a real live example on how to use img.php in a website.

v0.2 (2012-05-09)

Implemented filters as in http://php.net/manual/en/function.imagefilter.php
Changed crop to crop_to_fit, works the same way.
Changed arguments and sends them in array.
Added quality-setting.
Added testcases for above.

v0.1.1 (2012-04-27)

Corrected calculation where both width and height were set.

v0.1 (2012-04-25)

Initial release after rewriting some older code I had lying around.