PHP水印类,支持添加图片、文字、填充颜色区域

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*自己整理的一个水印类*
支持添加图片、文字、填充颜色区域

<?php/** * 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。 * 使用示例: *      $obj = new WaterMask($imgFileName);              //实例化对象 *      $obj->$waterType = 1;                     //类型:0为文字水印、1为图片水印 *      $obj->$transparent = 45;                  //水印透明度 *      $obj->$waterStr = 'icp.niufee.com';               //水印文字 *      $obj->$fontSize = 18;                     //文字字体大小 *      $obj->$fontColor = array(255,255,255);                //水印文字颜色(RGB) *      $obj->$fontFile = 'AHGBold.ttf';              //字体文件 *      …… *      $obj->output();                            //输出水印图片文件覆盖到输入的图片文件 * @modify liuzp111 */class WaterMask{    public  $waterTypeImage     = false;                                //水印类型:启用图片水印    public  $waterTypeStr       = false;                   //水印类型:启用文字水印    public  $pos                = 0;                   //水印位置    public  $transparent        = 45;                  //水印透明度(0---100)数值越大越不透明    public  $waterStr           = 'icp.niufee.com';            //水印文字    public  $fontSize           = 14;                  //文字字体大小    public  $fontColor          = array(0,0,0);                    //水印文字颜色(RGB) 默认黑色    public  $fontFile           = './font/simfang.ttf';            //字体文件    public  $waterImg           = 'logo.png';              //水印图片    private $srcImg             = '';                  //需要添加水印的图片    private $im                 = '';                  //图片句柄    private $water_im           = '';                  //水印图片句柄    private $srcImg_info        = '';                  //图片信息    private $waterImg_info      = '';                  //水印图片信息    private $str_w              = '';                  //水印文字宽度    private $str_h              = '';                  //水印文字高度    private $x                  = '';                  //水印X坐标    private $y                  = '';                  //水印y坐标    public  $output_img         = '';                                    //存储输出图片到哪里    public  $is_draw_rectangle  = false;                                    //是否绘制矩形区域  (暂不支持自定义位置)    //public $rectange_color      = '';                                    //绘制矩形区域的颜色       private $result_array       =  array();                              //结果数组     public  function __construct($img) {        //析构函数        //$this->srcImg = file_exists($img) ? $img : die('"'.$img.'" 源文件不存在!');        if(file_exists($img)){            $this->srcImg = $img;        }else{            return array('data'=>'','info'=>'源文件不存在!','status'=>0);        }    }    private function imginfo() {    //获取需要添加水印的图片的信息,并载入图片。        $this->srcImg_info = getimagesize($this->srcImg);        switch ($this->srcImg_info[2]) {            case 3:                $this->im = imagecreatefrompng($this->srcImg);                break 1;            case 2:                $this->im = imagecreatefromjpeg($this->srcImg);                break 1;            case 1:                $this->im = imagecreatefromgif($this->srcImg);                break 1;            default:                //die('原图片('.$this->srcImg.')格式不对,只支持PNG、JPEG、GIF。');                return array('data'=>'','info'=>'原图片('.$this->srcImg.')格式不对,只支持PNG、JPEG、GIF。','status'=>0);        }    }    private function waterimginfo() {   //获取水印图片的信息,并载入图片。        $this->waterImg_info = getimagesize($this->waterImg);        switch ($this->waterImg_info[2]) {            case 3:                $this->water_im = imagecreatefrompng($this->waterImg);                break 1;            case 2:                $this->water_im = imagecreatefromjpeg($this->waterImg);                break 1;            case 1:                $this->water_im = imagecreatefromgif($this->waterImg);                break 1;            default:                //die('水印图片('.$this->srcImg.')格式不对,只支持PNG、JPEG、GIF。');                 return array('data'=>'','info'=>'水印图片('.$this->srcImg.')格式不对,只支持PNG、JPEG、GIF。','status'=>0);        }    }    private function waterpos() {   //水印位置算法        switch ($this->pos) {            case 0:     //随机位置                $this->x = rand(0,$this->srcImg_info[0]-$this->waterImg_info[0]);                $this->y = rand(0,$this->srcImg_info[1]-$this->waterImg_info[1]);                break 1;            case 1:     //上左                $this->x = 0;                $this->y = 0;                break 1;            case 2:     //上中                $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;                $this->y = 0;                break 1;            case 3:     //上右                $this->x = $this->srcImg_info[0]-$this->waterImg_info[0];                $this->y = 0;                break 1;            case 4:     //中左                $this->x = 0;                $this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;                break 1;            case 5:     //中中                $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;                $this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;                break 1;            case 6:     //中右                $this->x = $this->srcImg_info[0]-$this->waterImg_info[0];                $this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;                break 1;            case 7:     //下左                $this->x = 0;                $this->y = $this->srcImg_info[1]-$this->waterImg_info[1];                break 1;            case 8:     //下中                $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;                $this->y = $this->srcImg_info[1]-$this->waterImg_info[1];                break 1;            case 9:     //下中偏上100px                $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;                $this->y = $this->srcImg_info[1]-$this->waterImg_info[1] - 100;                break 1;            default:    //下右                $this->x = $this->srcImg_info[0]-$this->waterImg_info[0];                $this->y = $this->srcImg_info[1]-$this->waterImg_info[1];                break 1;        }    }    /**     * 水印文字图片位置,根据需求调整     */    private function waterposStr() {        $this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;        $this->y = $this->srcImg_info[1]-$this->waterImg_info[1] - 3;            }    private function waterimg($type='') {        if ($this->srcImg_info[0] <= $this->waterImg_info[0] || $this->srcImg_info[1] <= $this->waterImg_info[1]){            //die('水印比原图大!');            return array('data'=>'','info'=>'水印比原图大!','status'=>0);        }        if($type == 'waterstr'){            $this->waterposStr();        }else{            $this->waterpos();        }        $cut = imagecreatetruecolor($this->waterImg_info[0],$this->waterImg_info[1]);        imagecopy($cut,$this->im,0,0,$this->x,$this->y,$this->waterImg_info[0],$this->waterImg_info[1]);        $pct = $this->transparent;        imagecopy($cut,$this->water_im,0,0,0,0,$this->waterImg_info[0],$this->waterImg_info[1]);        imagecopymerge($this->im,$cut,$this->x,$this->y,0,0,$this->waterImg_info[0],$this->waterImg_info[1],$pct);    }    private function waterstr() {        $rect = imagettfbbox($this->fontSize,0,$this->fontFile,$this->waterStr);        $w = abs($rect[2]-$rect[6]);        $h = abs($rect[3]-$rect[7]);        $fontHeight = $this->fontSize;        $this->water_im = imagecreatetruecolor($w, $h);        imagealphablending($this->water_im,false);        imagesavealpha($this->water_im,true);        $white_alpha = imagecolorallocatealpha($this->water_im,255,255,255,127);        imagefill($this->water_im,0,0,$white_alpha);        $color = imagecolorallocate($this->water_im,$this->fontColor[0],$this->fontColor[1],$this->fontColor[2]);        imagettftext($this->water_im,$this->fontSize,0,0,$this->fontSize,$color,$this->fontFile,$this->waterStr);        $this->waterImg_info = array(0=>$w,1=>$h);        $this->waterimg($type='waterstr');    }    /**     * 绘制矩形区     * bool imagefilledrectangle ( resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $color )     * bool imagerectangle ( resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $col )     * @author liuzp111     */    public function drawRectangle()    {        //imagefill($im,0,0,$gray);//填充资源,填充的坐标(类似PS魔棒),颜色        /*         *    1--------------画长方形--------------         *    bool imagerectangle ( resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $col )         *    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         */        $color =  imagecolorallocate($this->im,255,255,255);//创建矩形边框颜色和填充颜色        //=========================================================================        //绘制矩形区域并填充        // 参数说明:        //bool imagefilledrectangle ( resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $color )        // im:为将图像载入为图像资源        // $x1:表示矩形左上角的X坐标        // $y1:表示矩形左上角的Y坐标        // $x2:表示矩形右下角的X坐标        // $y2:表示矩形右下角的Y坐标        // $color:为填充的RGB颜色        //        imagefilledrectangle($this->im,3,$this->srcImg_info[1] - 20,$this->srcImg_info[0]-3,$this->srcImg_info[1]-3,$color);        //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        //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    }    function output() {        $this->imginfo();        //是否创建矩形区域        if($this->is_draw_rectangle){            $this->drawRectangle();        }        if ($this->waterTypeStr ) {            $this->waterstr();        }         if($this->waterTypeImage )        {            $this->waterimginfo();            $this->waterimg();        }        switch ($this->srcImg_info[2]) {            case 3:                $res_output = imagepng($this->im,$this->output_img);                break 1;            case 2:                $res_output =  imagejpeg($this->im,$this->output_img);                break 1;            case 1:                $res_output = imagegif($this->im,$this->output_img);                break 1;            default:               // die('添加水印失败!');                return array('data'=>'','info'=>'添加水印失败!','status'=>0);                break;        }        imagedestroy($this->im);        imagedestroy($this->water_im);        return array('data'=>$res_output,'info'=>'添加水印成功!','status'=>1);    }}

使用方式:

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