info=array(
            'width'=>$info[0],
            'height'=>$info[1],
            'type'=>p_w_picpath_type_to_extension($info[2],false),
            'mime'=>$info['mime']
        );
        $fun="p_w_picpathcreatefrom{$this->info['type']}";
        $this->p_w_picpath=$fun($src);
    }

    public function getImage(){
        return $this->p_w_picpath;
    }

    public function getInfo(){
        return $this->info;
    }

    /**
     * 图片压缩
     * @param $width
     * @param $height
     */
    public function thumb($width,$height){
        $p_w_picpath_thumb=p_w_picpathcreatetruecolor($width,$height);
        p_w_picpathcopyresampled($p_w_picpath_thumb,$this->p_w_picpath,0,0,0,0,$width,$height,$this->info['width'],$this->info['height']);
        p_w_picpathdestroy($this->p_w_picpath);
        $this->p_w_picpath=$p_w_picpath_thumb;
    }

    /**
     * 字体水印(默认左下角)
     * @param $fontfile 字体文件consolaz.ttf
     * @param $text 水印内容
     */
    public function fontMark($fontfile,$text){
        //红绿蓝=白+50透明度字体
        $col=p_w_picpathcolorallocatealpha($this->p_w_picpath, 255, 255, 255, 50);  
        //图片字体合成-参数：图像，字体大小，偏转角度，横向偏移，纵向偏移，颜色，字体文件，内容
        p_w_picpathttftext($this->p_w_picpath, 50, 0, 40, $this->info['height']-50, $col, $fontfile, $text);

    }

    /**
     * 图片水印
     * @param $water 水印图片
     * @param $waterInfo 水印图片信息
     */
    public function p_w_picpathMark($water,$waterInfo){
        p_w_picpathcopymerge($this->p_w_picpath,$water,20,30,0,0,$waterInfo['width'],$waterInfo['height'],20);
        /*图片合成-参数：目标图片，水印图片，横向偏移，纵向偏移，
         *水印图片x处开始复制，水印图片的y处开始复制，
         *水印图片x处结束复制，水印图片y处结束复制，水印图片的透明度。
         */
        p_w_picpathdestroy($water);
    }

    public function showInHtml(){
        header("content-type:".$this->info['mime']);
        $funs="p_w_picpath{$this->info['type']}";
        $funs($this->p_w_picpath);
    }

    /**
     * 保存图片
     * @param $newName 保存文件名
     */
    public function saveImage($newName){
        $funs="p_w_picpath{$this->info['type']}";
        $funs($this->p_w_picpath,"$newName.".$this->info['type']);//保存图片
    }

    public function __destruct(){
        p_w_picpathdestroy($this->p_w_picpath);
    }
}