Php-PHP source code for processing dynamic GIF images and GIF animations

Php implements processing of dynamic GIF images and GIF animations

1. [PHP] code

Class gifImages {public static $ fileName = null; public static $ desName = null; public static $ fileType = 'GIF'; public static function isExistFile ($ file) {if (is_file ($ file) {return self: $ fileName = & $ file;} print_r (error_get_last (); exit ;} /*** write text to the image * @ param $ fileNmae target file address * @ param $ text the text to be written * @ param $ desName the image address after Generation * @ param $ font * @ param $ size * @ param $ color the color to be written * @ param $ x coordinate x to be written * @ param $ y coordinate y to be written * /public function writeText ($ fileName, $ text, $ desName = '', $ font, $ size, $ weight = 100, $ color, $ x, $ y) {self: isFile ($ fileName ); $ desName = self: getDesName ($ desName); $ image = new Imagick (); $ draw = new ImagickDraw (); $ draw-> setTextEncoding ('utf-8'); $ draw-> setFont ($ font); // '/usr/share/fonts/bitstream-vera/VeraBd. ttf' $ draw-> setFontWeight ($ weight); $ draw-> setFillColor ($ color); $ draw-> setFontSize ($ size ); // 12 $ draw-> setGravity (1); $ draw-> setFillAlpha (1); $ image-> readImage ($ fileName); $ image-> resetIterator (); do {$ image-> annotateImage ($ draw, $ x, $ y, 0, $ text);} while ($ image-> nextImage ()); $ image-> setFormat (self: $ fileType); $ image-> writeImages ($ desName, true); $ draw-> clear (); $ image-> clear (); $ draw-> destroy (); $ image-> destroy (); return $ desName ;} /*** merge multiple images (one image can be written as a LOGO, or multiple images can be made into a dynamic GIF animation) * @ param $ fileNmae the original image can be multiple * @ param $ desName generated Image addresses * @ param $ delay if the GIF animation is generated, the time of each frame is 100 = 1 s. */public function mergeImage ($ fileName, $ desName, $ delay = 1) {}/*** change image size * @ param $ fileNmae original image address * @ param $ width * @ param $ height * @ param $ desName generated Image address */public function resizeImages ($ fileName, $ width, $ height, $ desName = '') {self: isFile ($ fileName); self: getDesName ($ desName); $ image = new Imagick (); $ image-> readImage ($ fileName); $ image-> resetIterator (); do {$ iw = $ image-> getImageWidth (); $ ih = $ image-> getImageHeight (); $ ratio = doubleval ($ iw)/doubleval ($ width); if ($ height * $ ratio <$ ih) {$ ratio = doubleval ($ ih)/doubleval ($ height) ;}$ arrSize = array (floor ($ iw/$ ratio ), floor ($ ih/$ ratio); $ image-> resizeImage ($ arrSize [0], $ arrSize [1], 1, 1 );} while ($ image-> nextImage (); $ image-> setFormat ("gif"); $ image-> writeImages (self ::$ desName, true ); $ image-> destroy (); return self: $ desName;} public static function getDesName ($ desName) {self: getType (self ::$ fileName ); if (empty ($ desName) {$ desName = md5 (time (). rand (0,100 )). '. '. self: $ fileType;} else {if (stripos (strtolower ($ desName ),'. ') = false) {$ desName. = ". ". self: $ fileType;} return self: $ desName = $ desName;} public static function getType ($ fileName) {$ size = getimagesize ($ fileName ); $ type = null; switch ($ size ['Mime ']) {case "image/gif": $ type = "gif"; break; case "image/jpeg ": $ type = "jpeg"; break; case "image/png": $ type = "png"; break; case "image/bmp": $ type = "bmp "; break; default: $ type = false;} unset ($ size); return self: $ fileType = $ type ;}}