PHP image Watermark class, PHP add Chinese watermark Code

Header ("Content-type:image/png"); /* Notify browser, to output image */ $im = Imagecreate (400, 300); /* Define the size of the image */ $gray = Imagecolorallocate ($im, 235, 235, 235); $pink = Imagecolorallocate ($im, 255, 128, 255); $fontfile = "Simkai.ttf"; /* $fontfile the path to the font, depending on the operating system, can be Simhei.ttf (bold), Simkai. TTF (in italics), Simfang. TTF (imitation), SimSun. TTC (Arial & XXFarEastFont-Arial) and other GD-supported Chinese fonts */ $str = Iconv (' GB2312 ', ' UTF-8 ', ' Chinese watermark '); /* Convert the gb2312 character set to UTF-8 characters */ Imagettftext ($im, 0, $pink, $fontfile, $STR); /* Add Chinese watermark */ Imagepng ($im); Imagedestroy ($im); ?> Copy Code Example 2,php image watermark code. // **************************************** // Function: Add text to a picture Parameters: $img picture file name $new _img Save picture file name, if empty indicates no picture is saved $text string Content Text_size string Size Text_angle Font string Output angle text_x string output x-coordinate text_y string output y-coordinate $text _font Font 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 ("Open picture Failed!"); $color = Imagecolorallocate ($im, $r, $g, $b); Imagettftext (int im, int size, int angle, int x, int y, int col, string fontfile, string text): This function writes the TTF (TrueType Fonts) font text to the picture. Parameter: size is the dimension of the glyph; Angle for the angle of the font, clockwise calculation, 0 degrees to the horizontal (from left to right), 90 degrees from the bottom to the top of the text; The x, y two parameter is the coordinate value of the text (the origin is the upper left corner); Col is the color of the word; Fontfile is the font file name; Text is the string content. Imagettftext ($im, $text _size, $text _angle, $text _x, $text _y, $color, $text _font, $text); if ($new _img== ""): Imagegif ($im); Do not save pictures, only show Else Imagegif ($im, $new _img); Save picture, but not display endif Imagedestroy ($im); End graph, free memory space } ?> Copy Code Example 3,php image watermark, support PHP text watermark effect. /* * Function: PHP image watermark (watermark supports picture or text) Parameters * $groundImage background image, that is, need to add a watermark image, temporarily only support gif,jpg,png format; * $waterPos watermark position, there are 10 kinds of states, 0 is a random position; * 1 for the top left, 2 for the top center, 3 for the top right; * 4 for the middle of the left, 5 for the Middle center, 6 for the middle right; * 7 for the bottom of the left, 8 for the bottom center, 9 for the bottom of the right; * $waterImage image watermark, that is, as a watermark image, temporarily only support gif,jpg,png format; * $waterText text watermark, that is, the text as a watermark, support ASCII code, does not support Chinese; * $textFont Text size, value 1, 2, 3, 4 or 5, default is 5; * $textColor text color, value is hexadecimal color value, default is #ff0000 (red); * * Note: Support GD 2.0,support FreeType, gif Read, GIF Create, JPG, PNG * $waterImage and $waterText best not to use at the same time, choose one of them, priority to use the $waterImage. * When the $waterimage is valid, the parameters $waterstring, $stringFont, $stringColor are not effective. * The watermark image has the same file name as the $groundImage. * Author: longware @ 2004-11-3 14:15:13 */ function Imagewatermark ($groundImage, $waterPos =0, $waterImage = "", $waterText = "", $textFont =5, $textColor = "#FF0000 ″) { $isWaterImage = FALSE; $FORMATMSG = "Does not support this file format, please use the picture processing software to convert the picture to GIF, JPG, PNG format. ”; Read Watermark File if (!emptyempty ($waterImage) && file_exists ($waterImage)) { $isWaterImage = TRUE; $water _info = getimagesize ($waterImage); $water _w = $water _info[0];//To obtain the width of the watermark picture $water _h = $water _info[1];//To obtain a high watermark image Switch ($water _info[2])//Get the format of the watermark picture { Case 1: $water _im = Imagecreatefromgif ($waterImage); Case 2: $water _im = Imagecreatefromjpeg ($waterImage); Case 3: $water _im = Imagecreatefrompng ($waterImage); Default:die ($FORMATMSG); } } Read background picture if (!emptyempty ($groundImage) && file_exists ($groundImage)) { $ground _info = getimagesize ($groundImage); $ground _w = $ground _info[0];//Get the width of the background image $ground _h = $ground _info[1];//get a high background picture Switch ($ground _info[2])//Get the format of the background picture { Case 1: $ground _im = Imagecreatefromgif ($groundImage); Case 2: $ground _im = Imagecreatefromjpeg ($groundImage); Case 3: $ground _im = Imagecreatefrompng ($groundImage); Default:die ($FORMATMSG); } } Else { Die ("The picture that needs watermark does not exist!") ”); } Watermark Location if ($isWaterImage)//Picture watermark { $w = $water _w; $h = $water _h; $label = "Picture"; } else//text watermark { $temp = Imagettfbbox (Ceil ($textFont), 0, "./cour.ttf", $waterText);//Get the range of text that uses TrueType fonts $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 picture that needs to be watermarked is more than a watermark". $label. " Still small, unable to generate watermark! ”; Return } Switch ($waterPos) { Case 0://Random $posX = rand (0, ($ground _w-$w)); $posY = rand (0, ($ground _h-$h)); Break Case 1://1 for top left $posX = 0; $posY = 0; Break Case 2://2 centered on the top $posX = ($ground _w-$w)/2; $posY = 0; Break Case 3://3 for top right $posX = $ground _w-$w; $posY = 0; Break Case 4://4 for the middle left $posX = 0; $posY = ($ground _h-$h)/2; Break Case 5://5 centered in the middle $posX = ($ground _w-$w)/2; $posY = ($ground _h-$h)/2; Break Case 6://6 for the middle right $posX = $ground _w-$w; $posY = ($ground _h-$h)/2; Break Case 7://7 for Bottom left $posX = 0; $posY = $ground _h-$h; Break Case 8://8 centered at bottom $posX = ($ground _w-$w)/2; $posY = $ground _h-$h; Break Case 9://9 for bottom right $posX = $ground _w-$w; $posY = $ground _h-$h; Break default://Random $posX = rand (0, ($ground _w-$w)); $posY = rand (0, ($ground _h-$h)); Break } To set the color blending mode of an image Imagealphablending ($ground _im, true); if ($isWaterImage)//Picture watermark { Imagecopy ($ground _im, $water _im, $posX, $posY, 0, 0, $water _w, $water _h);//copy watermark to target file } else//text watermark { if (!emptyempty ($textColor) && (strlen ($textColor) ==7)) { $R = Hexdec (substr ($textColor,)); $G = Hexdec (substr ($textColor, 3,2)); $B = Hexdec (substr ($textColor, 5)); } Else { Die ("Watermark text color format is not correct! ”); } Imagestring ($ground _im, $textFont, $posX, $posY, $waterText, Imagecolorallocate ($ground _im, $R, $G, $B)); } Create a picture after a watermark @unlink ($groundImage); Switch ($ground _info[2])//Get the format of the background picture { Case 1:imagegif ($ground _im, $groundImage); Case 2:imagejpeg ($ground _im, $groundImage); Case 3:imagepng ($ground _im, $groundImage); Default:die ($ERRORMSG); } Freeing 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 $waterImage = "logo_ok1.gif";//Watermark Picture Path Imagewatermark ($uploadfile, 9, $waterImage); echo ""; } Else { echo "Fail ”; } } } } ?> Copy Code Code 4 Add Chinese watermark /*----- * * Description: This is a custom class used to add a bottom watermark to the specified picture (without occupying the picture display area), and to create an object call * * Created: 2007-10-09 * * Updated: 2007-10-09 * * Description: 1, the need for GD library support, need ICONV support (PHP5 already included without loading) 2, only suitable for three kinds of pictures, jpg/jpeg/gif/png, other types do not handle 3. Note that the attributes of the directory in which the picture is located 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 function: --------------*/ Class mywaterdownchinese{ var $Path = "./"; The relative path of the directory in which the picture is located relative to the page calling this class var $FileName = ""; The name of the picture, such as "1.jpg" var $Text = ""; Watermark text to be added to the image, support Chinese var $TextColor = "#ffffff"; Text color, GIF picture, font color can only be black var $TextBgColor = "#000000"; The color of the text's background bar var $Font = "C://windows//fonts//simhei.ttf"; Font storage directory, relative path var $OverFlag = true; Whether to overwrite the original, default to overwrite, when not covered, automatically after the original file name + "_water_down", such as "1.jpg" = "1_water_down.jpg" var $BaseWidth = 200; The width of the picture must be at least >=200, and the watermark text will be added. //-------------- Function: constructor of Class (Form php5.0 or more) Parameters: None return: None function __construct () {;} //------------------------ Function: destructor of class (form above php5.0) Parameters: None return: None function __destruct () {;} //---------------------- Function: Object run function, add watermark to Picture Parameters: None return: None function Run () { if ($this->filename = = "" | | $this->text = = "") Return Detects if the GD library is installed if (false = = Function_exists ("Gd_info")) { echo "System does not have the GD library installed, can not add watermark to the picture."; Return } Set input, output picture path name $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]; Temporary processing of pictures, very important if (! $this->overflag) $OUTIMG = $this->path. $arr _in_name[0]. " _water_down. ". $arr _in_name[1]; Detect if a picture exists if (!file_exists ($INIMG)) return; Get the properties of a picture $groundImageType = @getimagesize ($INIMG); $imgWidth = $groundImageType [0]; $imgHeight = $groundImageType [1]; $imgType = $groundImageType [2]; if ($imgWidth < $this->basewidth)//Less than basic width, not processed Return The picture is not jpg/jpeg/gif/png when it is not processed Switch ($imgType) { Case 1: $image = Imagecreatefromgif ($INIMG); $this->textbgcolor = "#ffffff"; GIF picture font can only be black, so the background color is set to white Break Case 2: $image = Imagecreatefromjpeg ($INIMG); Break Case 3: $image = Imagecreatefrompng ($INIMG); Break Default Return Break } Create 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 picture, 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 ($this->textbgcolor,5,2))); Background color Fill the background color of the picture @imagefill ($OBJTMPIMG, 0,0, $colorBg); Copy the original to a temporary image @imagecopy ($OBJTMPIMG, $image, 0,0,0,0, $imgWidth, $imgHeight); Create a watermark text object to write to $objText = $this->createtext ($this->text); Calculate the location 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, $objText); Create a new picture, temporary picture Switch ($imgType) { Case 1: Imagegif ($OBJTMPIMG, $TMPIMG); Break Case 2: Imagejpeg ($OBJTMPIMG, $TMPIMG); Break Case 3: Imagepng ($OBJTMPIMG, $TMPIMG); Break Default Return Break } Freeing resources @imagedestroy ($OBJTMPIMG); @imagedestroy ($image); Renaming files if ($this->overflag) { Overwrite the original @unlink ($INIMG); @rename ($TMPIMG, $OUTIMG); } Else { Do not overwrite the original @rename ($TMPIMG, $OUTIMG); } } //---------- Function: Create watermark Text Object Parameters: None Return: Created Watermark text Object function CreateText ($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 ?> Copy Code

