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PHP水印类，支持添加图片、文字、填充颜色区域_php 文字水印颜色怎么加深

作者：笔触狂放9 | 2024-03-27 18:01:41

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php 文字水印颜色怎么加深

别人整理的，偷偷转载下，原文地址https://blog.csdn.net/liuzp111/article/details/53337787 

  1. <?php
  2. /**
  3.  * 图片加水印类，支持文字水印、透明度设置、自定义水印位置等。
  4.  * 使用示例：
  5.  *      $obj = new WaterMask($imgFileName);              //实例化对象
  6.  *      $obj->$waterType = 1;                     //类型：0为文字水印、1为图片水印
  7.  *      $obj->$transparent = 45;                  //水印透明度
  8.  *      $obj->$waterStr = 'icp.niufee.com';               //水印文字
  9.  *      $obj->$fontSize = 18;                     //文字字体大小
  10.  *      $obj->$fontColor = array(255,255,255);                //水印文字颜色（RGB）
  11.  *      $obj->$fontFile = 'AHGBold.ttf';              //字体文件
  12.  *      ……
  13.  *      $obj->output();                            //输出水印图片文件覆盖到输入的图片文件
  14.  * @modify liuzp111
  15.  */
  16. class WaterMask{
  17.     public  $waterTypeImage     = false;                                //水印类型：启用图片水印
  18.     public  $waterTypeStr       = false;                   //水印类型：启用文字水印
  19.     public  $pos                = 0;                   //水印位置
  20.     public  $transparent        = 45;                  //水印透明度(0---100)数值越大越不透明
  21.  
  22.     public  $waterStr           = 'icp.niufee.com';            //水印文字
  23.     public  $fontSize           = 14;                  //文字字体大小
  24.     public  $fontColor          = array(0,0,0);                    //水印文字颜色（RGB） 默认黑色
  25.     public  $fontFile           = './font/simfang.ttf';            //字体文件
  26.  
  27.     public  $waterImg           = 'logo.png';              //水印图片
  28.  
  29.     private $srcImg             = '';                  //需要添加水印的图片
  30.     private $im                 = '';                  //图片句柄
  31.     private $water_im           = '';                  //水印图片句柄
  32.     private $srcImg_info        = '';                  //图片信息
  33.     private $waterImg_info      = '';                  //水印图片信息
  34.     private $str_w              = '';                  //水印文字宽度
  35.     private $str_h              = '';                  //水印文字高度
  36.     private $x                  = '';                  //水印X坐标
  37.     private $y                  = '';                  //水印y坐标
  38.     public  $output_img         = '';                                    //存储输出图片到哪里
  39.     public  $is_draw_rectangle  = false;                                    //是否绘制矩形区域  （暂不支持自定义位置）
  40.     //public $rectange_color      = '';                                    //绘制矩形区域的颜色   
  41.     private $result_array       =  array();                              //结果数组 
  42.     public  function __construct($img) {        //析构函数
  43.         //$this->srcImg = file_exists($img) ? $img : die('"'.$img.'" 源文件不存在！');
  44.         if(file_exists($img)){
  45.             $this->srcImg = $img;
  46.         }else{
  47.             return array('data'=>'','info'=>'源文件不存在!','status'=>0);
  48.         }
  49.     }
  50.  
  51.     private function imginfo() {    //获取需要添加水印的图片的信息，并载入图片。
  52.         $this->srcImg_info = getimagesize($this->srcImg);
  53.         switch ($this->srcImg_info[2]) {
  54.             case 3:
  55.                 $this->im = imagecreatefrompng($this->srcImg);
  56.                 break 1;
  57.             case 2:
  58.                 $this->im = imagecreatefromjpeg($this->srcImg);
  59.                 break 1;
  60.             case 1:
  61.                 $this->im = imagecreatefromgif($this->srcImg);
  62.                 break 1;
  63.             default:
  64.                 //die('原图片（'.$this->srcImg.'）格式不对，只支持PNG、JPEG、GIF。');
  65.                 return array('data'=>'','info'=>'原图片（'.$this->srcImg.'）格式不对，只支持PNG、JPEG、GIF。','status'=>0);
  66.         }
  67.     }
  68.  
  69.     private function waterimginfo() {   //获取水印图片的信息，并载入图片。
  70.         $this->waterImg_info = getimagesize($this->waterImg);
  71.         switch ($this->waterImg_info[2]) {
  72.             case 3:
  73.                 $this->water_im = imagecreatefrompng($this->waterImg);
  74.                 break 1;
  75.             case 2:
  76.                 $this->water_im = imagecreatefromjpeg($this->waterImg);
  77.                 break 1;
  78.             case 1:
  79.                 $this->water_im = imagecreatefromgif($this->waterImg);
  80.                 break 1;
  81.             default:
  82.                 //die('水印图片（'.$this->srcImg.'）格式不对，只支持PNG、JPEG、GIF。');
  83.                  return array('data'=>'','info'=>'水印图片（'.$this->srcImg.'）格式不对，只支持PNG、JPEG、GIF。','status'=>0);
  84.         }
  85.     }
  86.     private function waterpos() {   //水印位置算法
  87.         switch ($this->pos) {
  88.             case 0:     //随机位置
  89.                 $this->x = rand(0,$this->srcImg_info[0]-$this->waterImg_info[0]);
  90.                 $this->y = rand(0,$this->srcImg_info[1]-$this->waterImg_info[1]);
  91.                 break 1;
  92.             case 1:     //上左
  93.                 $this->x = 0;
  94.                 $this->y = 0;
  95.                 break 1;
  96.             case 2:     //上中
  97.                 $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;
  98.                 $this->y = 0;
  99.                 break 1;
  100.             case 3:     //上右
  101.                 $this->x = $this->srcImg_info[0]-$this->waterImg_info[0];
  102.                 $this->y = 0;
  103.                 break 1;
  104.             case 4:     //中左
  105.                 $this->x = 0;
  106.                 $this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;
  107.                 break 1;
  108.             case 5:     //中中
  109.                 $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;
  110.                 $this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;
  111.                 break 1;
  112.             case 6:     //中右
  113.                 $this->x = $this->srcImg_info[0]-$this->waterImg_info[0];
  114.                 $this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;
  115.                 break 1;
  116.             case 7:     //下左
  117.                 $this->x = 0;
  118.                 $this->y = $this->srcImg_info[1]-$this->waterImg_info[1];
  119.                 break 1;
  120.             case 8:     //下中
  121.                 $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;
  122.                 $this->y = $this->srcImg_info[1]-$this->waterImg_info[1];
  123.                 break 1;
  124.             case 9:     //下中偏上100px
  125.                 $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;
  126.                 $this->y = $this->srcImg_info[1]-$this->waterImg_info[1] - 100;
  127.                 break 1;
  128.             default:    //下右
  129.                 $this->x = $this->srcImg_info[0]-$this->waterImg_info[0];
  130.                 $this->y = $this->srcImg_info[1]-$this->waterImg_info[1];
  131.                 break 1;
  132.         }
  133.     }
  134.     /**
  135.      * 水印文字图片位置，根据需求调整
  136.      */
  137.     private function waterposStr() {
  138.         $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;
  139.         $this->y = $this->srcImg_info[1]-$this->waterImg_info[1] - 3;        
  140.     }
  141.     private function waterimg($type='') {
  142.         if ($this->srcImg_info[0] <= $this->waterImg_info[0] || $this->srcImg_info[1] <= $this->waterImg_info[1]){
  143.             //die('水印比原图大！');
  144.             return array('data'=>'','info'=>'水印比原图大!','status'=>0);
  145.         }
  146.         if($type == 'waterstr'){
  147.             $this->waterposStr();
  148.         }else{
  149.             $this->waterpos();
  150.         }
  151.         $cut = imagecreatetruecolor($this->waterImg_info[0],$this->waterImg_info[1]);
  152.         imagecopy($cut,$this->im,0,0,$this->x,$this->y,$this->waterImg_info[0],$this->waterImg_info[1]);
  153.         $pct = $this->transparent;
  154.         imagecopy($cut,$this->water_im,0,0,0,0,$this->waterImg_info[0],$this->waterImg_info[1]);
  155.         imagecopymerge($this->im,$cut,$this->x,$this->y,0,0,$this->waterImg_info[0],$this->waterImg_info[1],$pct);
  156.     }
  157.  
  158.     private function waterstr() {
  159.         $rect = imagettfbbox($this->fontSize,0,$this->fontFile,$this->waterStr);
  160.         $w = abs($rect[2]-$rect[6]);
  161.         $h = abs($rect[3]-$rect[7]);
  162.         $fontHeight = $this->fontSize;
  163.         $this->water_im = imagecreatetruecolor($w, $h);
  164.         imagealphablending($this->water_im,false);
  165.         imagesavealpha($this->water_im,true);
  166.         $white_alpha = imagecolorallocatealpha($this->water_im,255,255,255,127);
  167.         imagefill($this->water_im,0,0,$white_alpha);
  168.         $color = imagecolorallocate($this->water_im,$this->fontColor[0],$this->fontColor[1],$this->fontColor[2]);
  169.         imagettftext($this->water_im,$this->fontSize,0,0,$this->fontSize,$color,$this->fontFile,$this->waterStr);
  170.         $this->waterImg_info = array(0=>$w,1=>$h);
  171.         $this->waterimg($type='waterstr');
  172.     }
  173.     /**
  174.      * 绘制矩形区
  175.      * bool imagefilledrectangle ( resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $color )
  176.      * bool imagerectangle ( resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $col )
  177.      * @author liuzp111
  178.      */
  179.     public function drawRectangle()
  180.     {
  181.         //imagefill($im,0,0,$gray);//填充资源，填充的坐标（类似PS魔棒），颜色
  182.         /*
  183.          *    1--------------画长方形--------------
  184.          *    bool imagerectangle ( resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $col )
  185.          *    参数: 画布资源, 左上角x坐标,左上y坐标,右下x坐标,右下y坐标,颜色
  186.          */
  187.         $color =  imagecolorallocate($this->im,255,255,255);//创建矩形边框颜色和填充颜色
  188.         //=========================================================================
  189.         //绘制矩形区域并填充
  190.         // 参数说明：
  191.         //bool imagefilledrectangle ( resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $color )
  192.         // im:为将图像载入为图像资源
  193.         // $x1:表示矩形左上角的X坐标
  194.         // $y1:表示矩形左上角的Y坐标
  195.         // $x2:表示矩形右下角的X坐标
  196.         // $y2:表示矩形右下角的Y坐标
  197.         // $color:为填充的RGB颜色
  198.         //
  199.         imagefilledrectangle($this->im,3,$this->srcImg_info[1] - 20,$this->srcImg_info[0]-3,$this->srcImg_info[1]-3,$color);
  200.         //不要使用下方的函数填充，下方填充函数为魔棒填充，容易导致填充不完整
  201.         //imagefill($this->im,$this->srcImg_info[0]/2,$this->srcImg_info[1]-8,$color);//填充资源，填充的坐标（魔棒），颜色
  202.  
  203.     }
  204.     function output() {
  205.         $this->imginfo();
  206.         //是否创建矩形区域
  207.         if($this->is_draw_rectangle){
  208.             $this->drawRectangle();
  209.         }
  210.         if ($this->waterTypeStr ) {
  211.             $this->waterstr();
  212.         } 
  213.         if($this->waterTypeImage )
  214.         {
  215.             $this->waterimginfo();
  216.             $this->waterimg();
  217.         }
  218.         switch ($this->srcImg_info[2]) {
  219.             case 3:
  220.                 $res_output = imagepng($this->im,$this->output_img);
  221.                 break 1;
  222.             case 2:
  223.                 $res_output =  imagejpeg($this->im,$this->output_img);
  224.                 break 1;
  225.             case 1:
  226.                 $res_output = imagegif($this->im,$this->output_img);
  227.                 break 1;
  228.             default:
  229.                // die('添加水印失败！');
  230.                 return array('data'=>'','info'=>'添加水印失败!','status'=>0);
  231.                 break;
  232.         }
  233.         imagedestroy($this->im);
  234.         imagedestroy($this->water_im);
  235.         return array('data'=>$res_output,'info'=>'添加水印成功!','status'=>1);
  236.     }
  237. }

 使用方式：

  1. $file = '58368dddc8c51_22';//需要加水印的图片
  2. $file_ext = '.jpeg';//扩展名
  3. $imgFileName = './'.$file.$file_ext;//需要加水印图片路径
  4. $obj = new WaterMask($imgFileName);  //实例化对象
  5. $obj->waterTypeStr = true;         //开启文字水印            
  6. $obj->waterTypeImage = true;       //开启图片水印    
  7. $obj->pos = 9;                 //定义水印图片位置  
  8. $obj->waterImg = './water.png';            //水印图片          
  9. $obj->transparent = 100;                   //水印透明度
  10. $obj->waterStr = '保险经纪人：刘测试  电话：02052552';             //水印文字
  11. $obj->fontSize = 9;                        //文字字体大小
  12. $obj->fontColor = array(0,0,0);                //水印文字颜色（RGB）
  13. $obj->fontFile = './font/msyh.ttc';        //字体文件，这里是微软雅黑
  14. $obj->is_draw_rectangle = TRUE;            //开启绘制矩形区域
  15. $obj ->output_img = './'.$file.'_n'.$file_ext;//输出的图片路径
  16. $obj->output();

 

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