Add watermarks to images and generate scaling charts-PHP source code

Adding watermarks to images and generating scaling charts
1. add a watermark to the image
2. generate a new scaling chart

Php code

 Wateon = C ("WATER_ON"); $ this-> waterImg = C ("WATER_IMG"); $ this-> waterPos = C ("WATER_POS "); $ this-> waterPct = C ("WATER_PCT"); $ this-> waterText = C ("WATER_TEXT"); $ this-> waterFont = C ("WATER_FONT "); $ this-> waterTextSize = C ("WATER_TEXT_SIZE"); $ this-> waterTextColor = C ("WATER_TEXT_COLOR"); $ this-> qua = C ("WATER_QUA "); // scaling chart $ this-> thumbWidth = C ("THUMB_WIDTH"); $ this-> thumbHeight = C ("THUMB_HEIGHT"); $ this-> thumbType = C ("THUMB_TYPE"); $ this-> thumbEndFix = C ("THUMB_ENDFIX");}/** verify whether the image is valid */private function check ($ img) {return is_file ($ img) & getimagesize ($ img) & extension_loaded ("gd ");} /** scaling chart * @ param string $ img Source image * @ param string $ the image stored after the outFile scaling rate * @ param int $ thumbWidth scaling rate chart width * @ param int $ thumbHeight scaling rate chart the height * @ param int $ thumbType method for scaling down */public function thumb ($ img, $ outFile = "", $ thumbWidth = "", $ thumbHeight =" ", $ ThumbType =" ") {if (! $ This-> check ($ img) {return false;} // how to handle a scaling chart $ thumbType = $ thumbType? $ ThumbType: $ this-> thumbType; // scaling chart width $ thumbWidth = $ thumbWidth? $ ThumbWidth: $ this-> thumbWidth; // scale chart height $ thumbHeight = $ thumbHeight? $ ThumbHeight: $ this-> thumbHeight; // Obtain the source image information $ imgInfo = getimagesize ($ img); // the source image width $ imgWidth = $ imgInfo [0]; // original image height $ imgHeight = $ imgInfo [1]; // Obtain the source image type $ imgtype = image_type_to_extension ($ imgInfo [2]); // according to different scaling methods, obtain the size (corresponding size of the source image and thumbnail) $ thumb_size = $ this-> thumbsize ($ imgWidth, $ imgHeight, $ thumbWidth, $ thumbHeight, $ thumbType ); // create the source image $ func = "imagecreatefrom ". substr ($ imgtype, 1); // variable function $ resImg = $ func ($ img); // Create a scaling chart if ($ I Mgtype = ". gif ") {$ res_thumb = imagecreate ($ thumb_size [2], $ thumb_size [3]);} else {$ res_thumb = imagecreatetruecolor ($ thumb_size [2], $ thumb_size [3]);} imagecopyresized ($ res_thumb, $ resImg, 0, 0, 0, $ thumb_size [2], $ thumb_size [3], $ thumb_size [0], $ thumb_size [1]); $ fileInfo = pathinfo ($ img); // File information $ outFile = $ outFile? $ OutFile: $ fileInfo ['filename']. $ this-> thumbEndFix. $ fileInfo ['extension']; // file name $ outFile = $ fileInfo ["dirname"]. "/". $ outFile; // add the directory $ func = "image ". substr ($ imgtype, 1); $ func ($ res_thumb, $ outFile); return $ outFile;} private function thumbSize ($ imgWidth, $ imgHeight, $ thumbWidth, $ thumbHeight, $ thumbType) {// scale chart size $ w = $ thumbWidth; $ h = $ thumbHeight; // source image size $ img_w = $ imgWidth; $ img_h = $ imgHeight; switch ($ thumbType ){ Case 1: // fixed width, auto-increment height $ h = $ w/$ imgWidth * $ imgHeight; break; case 2: // fixed height, width from $ w = $ h/$ imgHeight * $ imgWidth; break; case 3: if ($ imgHeight/$ thumbHeight> $ imgWidth/$ thumbWidth) {$ img_h = $ imgWidth/$ thumbWidth * $ thumbHeight;} else {$ img_w = $ imgHeight/$ thumbHeight * $ thumbWidth;} return array ($ img_w, $ img_h, $ w, $ h );} /** @ param string $ img Source image * @ param string $ image generated after the outImg watermark is added * @ param int $ pos watermark position * @ param int $ pct Transparency * @ param text $ text watermark text * @ param string $ waterImg watermark image */public function water ($ img, $ outImg = null, $ pos = "", $ pct = "", $ text = "", $ waterImg = "", $ textColor = "") {if (! $ This-> check ($ img) {return false;} // the image generated after adding the watermark $ outImg = $ outImg? $ OutImg: $ img; // Watermark Position $ pos = $ pos? $ Pos: $ this-> waterPos; // transparency $ pct = $ pct? $ Pct: $ this-> waterPct; // watermark text $ text = $ text? $ Text: $ this-> waterText; // watermark image $ waterImg = $ waterImg? $ WaterImg: $ this-> waterImg; // verify the watermark image $ waterImgOn = $ this-> check ($ waterImg); // watermark text color $ textColor = $ textColor? $ TextColor: $ this-> waterTextColor; // source image information $ imgInfo = getimagesize ($ img); // source image width $ imgWidth = $ imgInfo [0]; // original image height $ imgHeight = $ imgInfo [1]; switch ($ imgInfo [2]) {case 1: $ resImg = imagecreatefromgif ($ img); break; case 2: $ resImg = imagecreatefromjpeg ($ img); break; case 3: $ resImg = imagecreatefrompng ($ img); break;} if ($ waterImgOn) {// watermark image valid // watermark information $ waterInfo = getimagesize ($ waterImg); // watermark width $ waterWidth = $ waterInfo [0 ]; // Watermark height $ waterHeight = $ waterInfo [1]; // create different types of gif jpeg png $ w_img = null based on different situations; switch ($ waterInfo [2]) {case 1: $ w_img = imagecreatefromgif ($ waterImg); break; case 2: $ w_img = imagecreatefromjpeg ($ waterImg); break; case 3: $ w_img = imagecreatefrompng ($ waterImg) ;}} else {// The watermark image is invalid. use the text watermark if (empty ($ text) | strlen ($ textColor )! = 7) {return false;} // Obtain the text watermark box information $ textInfo = imagettfbbox ($ this-> waterTextSize, 0, $ this-> waterFont, $ text ); // text width $ textWidth = $ textInfo [2]-$ textInfo [6]; // text height $ textHeight = $ textInfo [3]-$ textInfo [7];} // Watermark Position $ x = $ y = 20; switch ($ pos) {case 1: break; case 2: $ x = ($ imgWidth-$ waterWidth)/2; break; case 3: $ y = $ imgWidth-$ waterWidth-10; break; case 4: $ x = ($ imgHeight-$ waterHeight)/2; break; case 5: $ x = ($ img Width-$ waterWidth)/2; $ y = ($ imgHeight-$ waterHeight)/2; break; case 6: $ x = $ imgWidth-$ waterWidth-10; $ y = ($ imgHeight-$ waterHeight)/2; break; case 7: $ x = $ imgHeight-$ waterHeight-10; break; case 8: $ x = ($ imgWidth-$ waterWidth)/2; $ y = $ imgHeight-$ waterHeight-10; break; case 9: $ x = $ imgWidth-$ waterWidth-10; $ y = $ imgHeight-$ waterHeight-10; break; default: $ x = mt_rand (20, $ imgWidth-$ waterWidth); $ y = mt_rand (20, $ imgH Eight-$ waterHeight);} if ($ waterImgOn) {// add a watermark as an image when the watermark image is valid. if ($ waterInfo [2] = 3) {imagecopy ($ resImg, $ w_img, $ x, $ y, 0, 0, $ waterWidth, $ waterHeight);} else {imagecopymerge ($ resImg, $ w_img, $ x, $ y, $ waterInfo, $ waterHeight, $ pct) ;}} else {// The watermark image is invalid, add $ red = hexdec (substr ($ this-> waterTextColor,) as a text watermark; $ greem = hexdec (substr ($ this-> waterTextColor )); $ blue = hexdec (substr ($ this-> waterTextColor, 5, 2); $ color = I Magecolorallocate ($ resImg, $ red, $ greem, $ blue); imagettftext ($ resImg, $ this-> waterTextSize, 0, $ x, $ y, $ color, $ this-> waterFont, $ text);} // output Image switch ($ imgInfo [2]) {case 1: imagegif ($ resImg, $ outImg); break; case 2: imagejpeg ($ resImg, $ outImg); break; case 3: imagepng ($ resImg, $ outImg); break ;} // garbage collection if (isset ($ resImg) {imagedestroy ($ resImg);} if (isset ($ w_img) {imagedestroy ($ w_img );} return true ;}}?>

 1, // watermark switch "WATER_IMG" => ". /data/logo.png ", // watermark image" WATER_POS "=> 9, // Watermark Position" WATER_PCT "=> 80, // watermark transparency "WATER_TEXT" => "http://www.caoxiaobin.cn", "WATER_FONT" => ". /data/simsunb. ttf ", // watermark font" WATER_TEXT_COLOR "=>" #333333 ", // hexadecimal representation of the text color" WATER_TEXT_SIZE "=> 16, // text size "WATER_QUA" => 80, // Image compression ratio // Thumbnail "THUMB_WIDTH" => 150, // shrinkage image width "THUMB_HEIGHT" => 150, // Thumbnail height "THUMB_TYPE" => 1, // fixed width of thumbnail processing 1, fixed height auto-Increment 2, fixed width auto-increment // the size of the thumbnail remains unchanged, crop the source image "T HUMB_ENDFIX "=>" _ thmub "// Thumbnail suffix);?>

/** Case-insensitive data key detection */function array_key_exists_d ($ key, $ arr) {$ _ key = strtolower ($ key ); foreach ($ arr as $ k =>$ v) {if ($ _ key = strtolower ($ k) {return true ;}}} /** recursively change the KEY (KEY name) of the array * @ param array; * @ stat int 0 lower case 1 upper case */function array_change_key_case_d ($ arr, $ stat = 0) {$ func = $ stat? "Strtoupper": "strtolower"; $ _ newArr = array (); if (! Is_array ($ arr) | empty ($ arr) {return $ _ newArr;} foreach ($ arr as $ k => $ v) {$ _ k = $ func ($ k); // convert the case sensitivity of the KEY using the variable function $ _ newArr [$ _ k] = is_array ($ v )? Array_change_key_case_d ($ v): $ v;} return $ _ newArr;}/** Read and set configuration item * @ param $ name void configuration item name, if you do not enter the value of all configuration items * @ param $ value void configuration item * @ param $ value false null, only the $ name value */function C ($ name = null, $ value = null) {static $ config = array (); // static variable $ config stores all configuration items if (is_null ($ name) {return $ config ;} // if $ name is an array if (is_array ($ name) {return $ config = array_merge ($ config, array_change_key_case_d ($ name, 1);} // $ nam E is a string. if $ value has no value, the value of the configuration item is obtained. if (is_string ($ name) {$ name = strtoupper ($ name), the configuration item is changed ); // Obtain the configuration item value if (is_null ($ value) {return array_key_exists_d ($ name, $ config )? $ Config [$ name]: null;} else {// set the value $ config [$ name] = $ value; return true ;}}}