note 69990 deleted from function.image-type-to-extension by sobak

Note Submitter: Ian Paul Short ---- 2006-09-29 Author: Ian Paul Short (chukdocs at hotmail dot com) For reasons I have yet to determine the function “image_type_to_extension” is not available to both PHP 5.1.4 on my local host running under Windows XP or on my remote host running under Linux. Has anyone else had this problem? If so kindly post your findings here please. In the meantime I needed a workaround and with many thanks to the previous contributors on this page - I took bits and pieces developed the following function to emulate the function image_type_to_extension: if(!function_exists('image_type_to_extension')){ ### Include this for graceful tranisition to using ### PHP's equivalent function when it's available in the box function image_type_to_extension($image_type, $include_dot){ // Assign definitions and intialise variables define ("INVALID_IMAGETYPE", ''); // Empty string $extension = INVALID_IMAGETYPE; // Return this (empty string) if "$image_type or $include_dot" do not contain legal values if((is_int($image_type)) AND (is_bool($include_dot)) AND (IMAGETYPE_GIF <= $image_type) AND (IMAGETYPE_XBM >= $image_type)){ // Check input data are legal $image_type_extension = array ( ### These integer values correspond to the the respective IMAGETYPE constants IMAGETYPE_GIF => 'gif', ### 1 = GIF IMAGETYPE_JPEG => 'jpg', ### 2 = JPG IMAGETYPE_PNG => 'png', ### 3 = PNG IMAGETYPE_SWF => 'swf', ### 4 = SWF IMAGETYPE_PSD => 'psd', ### 5 = PSD IMAGETYPE_BMP => 'bmp', ### 6 = BMP IMAGETYPE_TIFF_II => 'tiff', ### 7 = TIFF (intel byte order) IMAGETYPE_TIFF_MM => 'tiff', ### 8 = TIFF (motorola byte order) IMAGETYPE_JPC => 'jpc', ### 9 = JPC IMAGETYPE_JP2 => 'jp2', ### 10 = JP2 IMAGETYPE_JPX => 'jpf', ### 11 = JPX Yes! jpf extension is correct for JPX image type IMAGETYPE_JB2 => 'jb2', ### 12 = JB2 IMAGETYPE_SWC => 'swc', ### 13 = SWC IMAGETYPE_IFF => 'aiff', ### 14 = IFF IMAGETYPE_WBMP => 'wbmp', ### 15 = WBMP IMAGETYPE_XBM => 'xbm' ### 16 = XBM ); $extension = $image_type_extension[$image_type]; // Get extension by using array as a look up table using $image_type as key if($include_dot != false) $extension = '.' . $extension; // If $include_dot is true prefix a dot to extension } ### Limitation - No user friendly error handler /* else { ### Put your error handler here } */ return $extension; } }