PHP Image Manipulation Class 1.0.4

PHP Image Manipulation Class can be used to perform several types of image manipulation operations.
It can rescale images to fit in a given width or height keeping (or not) the original aspect ratio, flip images horizontally or vertically, and rotate images by a given angle while filling the empty spaces with a given color.
All operations preserve transparency. The class does all the error checking for the source and target files. The class supports loading and saving images in the GIF, JPEG, and PNG formats.
Enhancements:
- The crop() method was added.
- The preserveSourceFileTime property was added, which instructs the scripts to preserve the date and time of the source files and pass them on to the target files.
- The flip methods now use the imagecopyresampled function instead of using imagecopy.
- The script no longer crashes when a valid path which is not a file is specified as a source file.
- Error handling for the create_image_from_source_file() private method was fixed, so the script can no longer be easily crashed by specifying bogus source files.