Php image watermark class, php adds Chinese watermark code

Php image watermark class, php adds Chinese watermark code

Header ("Content-type: image/png");/* notify the browser to output the image */ $ Im = imagecreate (400,300);/* define the image size */ $ Gray = ImageColorAllocate ($ im, 235,235,235 ); $ Pink = ImageColorAllocate ($ im, 255,128,255 ); $ Fontfile = "simkai. ttf "; /* $ Fontfile font path, depending on the operating system, can be simhei. ttf (), SIMKAI. TTF (entity body), SIMFANG. TTF (Imitation Song), SIMSUN. chinese fonts supported by GD, such as TTC (& */ $ Str = iconv ('gb2312', 'utf-8', 'Chinese watermark');/* convert the GB2312 character set to the character set of the UTF-8 */ ImageTTFText ($ im, 30, 0,100,200, $ pink, $ fontfile, $ str ); /* Add a Chinese watermark */ Imagepng ($ im ); ImageDestroy ($ im ); ?> Example 2: php image watermark code. //************************************** **// // Function: add text to the image // Parameter: $ img image file name // $ New_img saves another image file name. if it is null, it means no other image is saved. // $ Text string content // Text_size string size // Text_angle font string output angle // Output x coordinate of text_x string // Output y coordinate from text_y string // $ Text_font-shaped file name // $ R, $ g, $ B string color RGB value //************************************** **// Function img_text ($ img, $ new_img, $ text, $ text_size, $ text_angle, $ text_x, $ text_y, $ text_font, $ r, $ g, $ B ){ $ Text = iconv ("gb2312", "UTF-8", $ text ); Header ("Content-type: image/gif "); $ Im = @ imagecreatefromstring (file_get_contents ($ img) or die ("Opening the image failed! "); $ Color = ImageColorAllocate ($ im, $ r, $ g, $ B ); // ImageTTFText (int im, int size, int angle, int x, int y, int col, string fontfile, string text ): // This function writes TTF (TrueType Fonts) text to an image. // Parameter: the size is the font size; // Angle is the font angle, which is calculated clockwise. 0 degrees is horizontal (from left to right), and 90 degrees is the bottom-to-top text; // The x and y parameters are the coordinate values of the text (the origin is the upper left corner ); // Col indicates the color of the word; // Fontfile is the font file name; // Text is the string content. ImageTTFText ($ im, $ text_size, $ text_angle, $ text_x, $ text_y, $ color, $ text_font, $ text ); If ($ new_img = ""): ImageGif ($ im); // do not save the image, only show Else: ImageGif ($ im, $ new_img); // save the image but it is not displayed Endif; ImageDestroy ($ im); // ends the image and releases the memory space. } ?> Example 3: php image watermark, which supports the php text watermark effect. /* * Function: PHP image watermark (watermarks support images or text) * Parameters: * $ GroundImage: specifies the background image to be Watermark. Currently, only GIF, JPG, and PNG formats are supported; * $ WaterPos watermark position, which has 10 statuses. 0 indicates a random position; * 1 is the top left, 2 is the top center, and 3 is the top right; * 4: center left, 5: center, and 6: center right; * 7 indicates that the bottom is left, 8 indicates that the bottom is center, and 9 indicates that the bottom is right; * $ WaterImage: specifies the image Watermark. Currently, only the GIF, JPG, and PNG formats are supported; * $ WaterText text watermark: uses text as a watermark. it supports ASCII codes and does not support Chinese characters; * $ TextFont text size. The value is 1, 2, 3, 4, or 5. the default value is 5; * $ TextColor text color. The value is a hexadecimal color value. The default value is # FF0000 (red ); * * Note: Support GD 2.0, Support FreeType, GIF Read, GIF Create, JPG, and PNG * $ WaterImage and $ waterText should not be used at the same time. select one of them and use $ waterImage first. * When $ waterImage is valid, $ waterString, $ stringFont, and $ stringColor are invalid. * The name of the watermark image is the same as that of $ groundImage. * Author: longware @ 2004-11-3 14:15:13 */ Function imageWaterMark ($ groundImage, $ waterPos = 0, $ waterImage = "", $ waterText = "", $ textFont = 5, $ textColor = "# FF0000 ″) { $ IsWaterImage = FALSE; $ FormatMsg = "this file format is not supported Currently. use image processing software to convert images to GIF, JPG, and PNG formats ."; // Read the watermark file If (! Emptyempty ($ waterImage) & file_exists ($ waterImage )) { $ IsWaterImage = TRUE; $ Water_info = getimagesize ($ waterImage ); $ Water_w = $ water_info [0]; // Obtain the watermark image width. $ Water_h = $ water_info [1]; // Get the watermark image height Switch ($ water_info [2]) // Obtain the watermark image format { Case 1: $ water_im = imagecreatefromgif ($ waterImage); break; Case 2: $ water_im = imagecreatefromjpeg ($ waterImage); break; Case 3: $ water_im = imagecreatefrompng ($ waterImage); break; Default: die ($ formatMsg ); } } // Read the background image If (! Emptyempty ($ groundImage) & file_exists ($ groundImage )) { $ Ground_info = getimagesize ($ groundImage ); $ Ground_w = $ ground_info [0]; // Obtain the width of the background image. $ Ground_h = $ ground_info [1]; // get the height of the background image Switch ($ ground_info [2]) // Obtain the background image format { Case 1: $ ground_im = imagecreatefromgif ($ groundImage); break; Case 2: $ ground_im = imagecreatefromjpeg ($ groundImage); break; Case 3: $ ground_im = imagecreatefrompng ($ groundImage); break; Default: die ($ formatMsg ); } } Else { Die ("the image to be watermarked does not exist !"); } // Watermark Position If ($ isWaterImage) // image watermark { $ W = $ water_w; $ H = $ water_h; $ Label = "image "; } Else // text watermark { $ Temp = imagettfbbox (ceil ($ textFont * 5), 0, "./cour. ttf", $ waterText); // get the text range using the TrueType font $ W = $ temp [2]-$ temp [6]; $ H = $ temp [3]-$ temp [7]; Unset ($ temp ); $ Label = "text area "; } If ($ ground_w <$ w) | ($ ground_h <$ h )) { Echo "the length or width of the image to be watermarked is smaller than that of the watermark". $ label. ", the watermark cannot be generated !"; Return; } Switch ($ waterPos) { Case 0: // random $ PosX = rand (0, ($ ground_w-$ w )); $ PosY = rand (0, ($ ground_h-$ h )); Break; Case 1: // 1 is the top left $ PosX = 0; $ PosY = 0; Break; Case 2: // 2 center the top $ PosX = ($ ground_w-$ w)/2; $ PosY = 0; Break; Case 3: // 3: top right $ PosX = $ ground_w-$ w; $ PosY = 0; Break; Case 4: // 4 is left in the middle $ PosX = 0; $ PosY = ($ ground_h-$ h)/2; Break; Case 5: // 5 center in the middle $ PosX = ($ ground_w-$ w)/2; $ PosY = ($ ground_h-$ h)/2; Break; Case 6: // 6 is the center and right $ PosX = $ ground_w-$ w; $ PosY = ($ ground_h-$ h)/2; Break; Case 7: // 7 is left at the bottom $ PosX = 0; $ PosY = $ ground_h-$ h; Break; Case 8: // 8 is centered at the bottom $ PosX = ($ ground_w-$ w)/2; $ PosY = $ ground_h-$ h; Break; Case 9: // 9: right $ PosX = $ ground_w-$ w; $ PosY = $ ground_h-$ h; Break; Default: // random $ PosX = rand (0, ($ ground_w-$ w )); $ PosY = rand (0, ($ ground_h-$ h )); Break; } // Set the mixed color mode of the image Imagealphablending ($ ground_im, true ); If ($ isWaterImage) // image watermark { Imagecopy ($ ground_im, $ water_im, $ posX, $ posY, 0, 0, $ water_w, $ water_h); // Copy the watermark to the target file } Else // text watermark { If (! Emptyempty ($ textColor) & (strlen ($ textColor) = 7 )) { $ R = hexdec (substr ($ textColor, 1, 2 )); $ G = hexdec (substr ($ textColor, 3, 2 )); $ B = hexdec (substr ($ textColor, 5 )); } Else { Die ("incorrect watermark text color format !"); } Imagestring ($ ground_im, $ textFont, $ posX, $ posY, $ waterText, imagecolorallocate ($ ground_im, $ R, $ G, $ B )); } // The image after the watermark is generated @ Unlink ($ groundImage ); Switch ($ ground_info [2]) // Obtain the background image format { Case 1: imagegif ($ ground_im, $ groundImage); break; Case 2: imagejpeg ($ ground_im, $ groundImage); break; Case 3: imagepng ($ ground_im, $ groundImage); break; Default: die ($ errorMsg ); } // Release the memory If (isset ($ water_info) unset ($ water_info ); If (isset ($ water_im) imagedestroy ($ water_im ); Unset ($ ground_info ); Imagedestroy ($ ground_im ); } //----------------------------- $ Id = $ _ REQUEST ['id']; $ Num = count ($ _ FILES ['userfile'] ['name']); Print_r ($ _ FILES ['userfile']); Print_r ($ _ FILES ['userfile'] ['name']); Echo $ num; Echo" "; If (isset ($ id )){ For ($ I = 0; $ I <$ id; $ I ++ ){ If (isset ($ _ FILES )&&! Emptyempty ($ _ FILES ['userfile']) & $ _ FILES ['userfile'] ['size']> 0) { $ Uploadfile = "./". time (). "_". $ _ FILES ['userfile'] [name] [$ I]; Echo" "; Echo $ uploadfile; If (copy ($ _ FILES ['userfile'] ['tmp _ name'] [$ I], $ uploadfile )) { Echo "OK "; // Text watermark // ImageWaterMark ($ uploadfile, 5, "", "HTTP: // www.lvye.info", 5, "# cccccc"); // Image watermark Watermark waterimage##logo_ok1.gif "; // watermark image path ImageWaterMark ($ uploadfile, 9, $ waterImage ); Echo ""; } Else { Echo "Fail "; } } } } ?> Code 4 adds a Chinese watermark /*----- ** Description: This is a custom class used to add a bottom watermark (not occupying the image display area) to a specified image. you need to create an object to call this class. ** Creation: 2007-10-09 ** Updated: 2007-10-09 ** Note: 1. the gd Library is required and iconv is required (php5 already contains and does not need to be loaded) 2. only applicable to three types of images: jpg, jpeg, gif, and png. do not process other types of images. 3. Note that the attribute of the image directory must be writable. 4. call example: $ ObjImg = new MyWaterDownChinese (); $ ObjImg-> Path = "images /"; $ ObjImg-> FileName = "1.jpg "; $ ObjImg-> Text = "HAHAKONGJIANHTTP: // HI. BAIDU. COM/LYSONCN "; $ ObjImg-> Font = "./font/simhei. ttf "; $ ObjImg-> Run (); ** Member functions: --------------*/ Class MyWaterDownChinese { Var $ Path = "./"; // relative Path of the image directory to the page that calls this class Var $ FileName = ""; // The name of the image, for example, JPG" Var $ Text = ""; // The watermark Text to be added to the image. Chinese characters are supported. Var $ TextColor = "# ffffff"; // text color. the font color must be black when the GIF image is used. Var $ TextBgColor = "#000000"; // The color of the text background bar Var $ Font = "c: // windows // fonts // simhei. ttf"; // Directory for storing fonts, relative path Var $ OverFlag = true; // specifies whether to overwrite the source image. if the source image is not overwritten by default, the system automatically adds "_ water_down" after the source image file name, for example, “1.jpg "=>" 1_water_down.jpg" Var $ BaseWidth = 200; // The watermark text is added only when the image width is greater than or equal to 200. //-------------- // Function: constructor of the class (php5.0 or above) // Parameter: None // Return: None Function _ construct (){;} //------------------------ // Function: class destructor (php5.0 or above) // Parameter: None // Return: None Function _ destruct (){;} //---------------------- // Function: run the object function and add a watermark to the image. // Parameter: None // Return: None Function Run () { If ($ this-> FileName = "" | $ this-> Text = "") Return; // Check whether the GD Library is installed If (false = function_exists ("gd_info ")) { Echo "the GD library is not installed in the system, and watermarks cannot be added to images ."; Return; } // Set the input and output image pathnames $ Arr_in_name = explode (".", $ this-> FileName ); // $ InImg = $ this-> Path. $ this-> FileName; $ OutImg = $ inImg; $ TmpImg = $ this-> Path. $ arr_in_name [0]. "_ tmp.". $ arr_in_name [1]; // temporarily processed image, very important If (! $ This-> OverFlag) $ OutImg = $ this-> Path. $ arr_in_name [0]. "_ water_down.". $ arr_in_name [1]; // Check whether the image exists If (! File_exists ($ inImg )) Return; // Obtain Image attributes $ GroundImageType = @ getimagesize ($ inImg ); $ ImgWidth = $ groundImageType [0]; $ ImgHeight = $ groundImageType [1]; $ ImgType = $ groundImageType [2]; If ($ imgWidth <$ this-> BaseWidth) // smaller than the basic width, not processed Return; // When the image is not jpg/jpeg/gif/png, it is not processed Switch ($ imgType) { Case 1: $ Image = imagecreatefromgif ($ inImg ); $ This-> TextBgColor = "# ffffff"; // The GIF image font can only be black, so the background color is white. Break; Case 2: $ Image = imagecreatefromjpeg ($ inImg ); Break; Case 3: $ Image = imagecreatefrompng ($ inImg ); Break; Default: Return; Break; } // Create a color $ Color = @ imagecolorallocate ($ image, hexdec (substr ($ this-> TextColor, 1, 2), hexdec (substr ($ this-> TextColor, 3, 2 )), hexdec (substr ($ this-> TextColor, 5, 2); // text color // Generate an empty image. its height increases the watermark height at the bottom. $ NewHeight = $ imgHeight + 20; $ ObjTmpImg = @ imagecreatetruecolor ($ imgWidth, $ newHeight ); $ ColorBg = @ imagecolorallocate ($ objTmpImg, hexdec (substr ($ this-> TextBgColor, 1, 2), hexdec (substr ($ this-> TextBgColor, 3, 2 )), hexdec (substr ($ this-> TextBgColor, 5, 2); // background color // Fill in the background color of the image @ Imagefill ($ objTmpImg, 0, 0, $ colorBg ); // Copy the source image to the temporary Image @ Imagecopy ($ objTmpImg, $ image, 0, 0, 0, $ imgWidth, $ imgHeight ); // Create the watermark text object to be written $ ObjText = $ this-> createText ($ this-> Text ); // Calculate the position of the watermark text to be written $ X = 5; $ Y = $ newHeight-5; // Write a text watermark @ Imagettftext ($ objTmpImg, 10, 0, $ x, $ y, $ color, $ this-> Font, $ objText ); // Generate a new image and a temporary Image Switch ($ imgType) { Case 1: Imagegif ($ objTmpImg, $ tmpImg ); Break; Case 2: Imagejpeg ($ objTmpImg, $ tmpImg ); Break; Case 3: Imagepng ($ objTmpImg, $ tmpImg ); Break; Default: Return; Break; } // Release resources @ Imagedestroy ($ objTmpImg ); @ Imagedestroy ($ image ); // Rename the file If ($ this-> OverFlag) { // Overwrite the source image @ Unlink ($ inImg ); @ Rename ($ tmpImg, $ outImg ); } Else { // Do not overwrite the source image @ Rename ($ tmpImg, $ outImg ); } } //---------- // Function: Create a watermark text object // Parameter: None // Return: the created watermark text object. Function createText ($ instring) { $ Outstring = ""; $ Max = strlen ($ instring ); For ($ I = 0; $ I <$ max; $ I ++) { $ H = ord ($ instring [$ I]); If ($ h >=160 & $ I <$ MAX-1) { $ Outstring. = "&#". base_convert (bin2hex (iconv ("gb2312", "UCS-2", substr ($ instring, $ I, 2), 16, 10 ). ";"; $ I ++; } Else { $ Outstring. = $ instring [$ I]; } } Return $ outstring; } } // Class ?>