Imagick::getCompression

The ImageMagick PHP function for getCompression returns an integer representing the value associated with the ImageMagick Compression constant.  You'll get numbers from 0 to 13, each representing a different particular type of compression.  If printed out, the ImageMagick constants for compression come out as...imagick::COMPRESSION_UNDEFINED    0imagick::COMPRESSION_NO    1imagick::COMPRESSION_BZIP    2imagick::COMPRESSION_DXT1    3imagick::COMPRESSION_DXT3    4imagick::COMPRESSION_DXT5    5imagick::COMPRESSION_FAX    6imagick::COMPRESSION_GROUP4    7imagick::COMPRESSION_JPEG    8imagick::COMPRESSION_JPEG2000    9imagick::COMPRESSION_LOSSLESSJPEG    10imagick::COMPRESSION_LZW    11imagick::COMPRESSION_RLE    12imagick::COMPRESSION_ZIP    13Every time I have used this, whether on a jpeg image, a png image, a gif image, or a bmp image, it has always returned '0' as a value.  There's a good chance that this is simply a value that is set by means of get/set, as opposed to actually producing values for a given image.Some sample code :<?php            // Author: holdoffhunger@gmail.com            // Imagick Type        // ---------------------------------------------    $imagick_type = new Imagick();            // Open File        // ---------------------------------------------            $file_to_grab = "image_workshop_directory/test.bmp";        $file_handle_for_viewing_image_file = fopen($file_to_grab, 'a+');            // Grab File        // ---------------------------------------------    $imagick_type->readImageFile($file_handle_for_viewing_image_file);            // Get Quantum Range        // ---------------------------------------------            $imagick_type_compression = $imagick_type->getCompression();            // Print Results        // ---------------------------------------------    print("<pre>");    print($imagick_type_compression);    print("</pre>");?>