Thinkphp3.2.3整合phpqrcode生成二维码

末蓝、 2022-03-27 13:51 460阅读 0赞

**一、下载phpqrcode**  
下载地址：[https://sourceforge.net/projects/phpqrcode/][https_sourceforge.net_projects_phpqrcode]  
下载后解压放到ThinkPHP\\Library\\Vendor  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xvbmdnZWFpc2lzaQ_size_16_color_FFFFFF_t_70]

**二、使用**  
1、调用phpqrcode生成二维码

public function qrcode()
        {
            $url="http://www.baidu.com";
            $path = "Public/Uploads/"; //本地文件存储路径
            $level=3;
            $size=4;
            Vendor('phpqrcode');
            $errorCorrectionLevel =intval($level) ;//容错级别
            $matrixPointSize = intval($size);//生成图片大小 //生成二维码图片
            $object = new \QRcode();
            $QR ="Public/Uploads/22.png";
            $object->png($url, false, $errorCorrectionLevel, $matrixPointSize, 2);
        }

效果  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xvbmdnZWFpc2lzaQ_size_16_color_FFFFFF_t_70 1]

2、生成带logo的二维码  
控制器方法

/**
         * 生成带背景的二维码图
         */
        public function index(){
            $productid = I('productid');
            $uid = I('uid');
            Vendor('phpqrcode');
            $value = 'http://www.baidu.com"; //二维码内容
            $errorCorrectionLevel = 'L';//容错级别
            $matrixPointSize = 6;//生成图片大小   //生成二维码图片
            $object = new \QRcode();
            $codeurl = 'code'.$uid;
            $object->png($value, 'Public/'.$codeurl.'.png', $errorCorrectionLevel, $matrixPointSize, 2);
            $logo = 'Public/'.$codeurl.'.png';//已经生成的原始二维码图
            $QR = 'Public/Uploads/back.png';//准备好的logo图片
            if ($logo !== FALSE) {
                $QR = imagecreatefromstring(file_get_contents($QR));
                $logo = imagecreatefromstring(file_get_contents($logo));
                $QR_width = imagesx($QR);//二维码图片宽度
                $QR_height = imagesy($QR);//二维码图片高度
                $logo_width = imagesx($logo);//logo图片宽度
                $logo_height = imagesy($logo);//logo图片高度
                $logo_qr_width = $QR_width / 5;
                $scale = $logo_width/$logo_qr_width;
                $logo_qr_height = $logo_height/$scale;
                $from_width = ($QR_width - $logo_qr_width) / 2; //重新组合图片并调整大小
                imagecopyresampled($QR, $logo, 6, 720, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height);
            } //输出图片
            $spreadimg = 'spread'.$uid;//输出图片名字
            imagepng($QR, 'Public/'.$spreadimg.'.png');
            $this->assign('spreadimg',$spreadimg);
            $this->display();
        }

页面显示

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
    <img src="__PUBLIC__/{$spreadimg}.png" alt="" style="width:100%;height:auto"/>
    </body>
    </html>

效果，二维码在左下角  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xvbmdnZWFpc2lzaQ_size_16_color_FFFFFF_t_70 2]

[https_sourceforge.net_projects_phpqrcode]: https://sourceforge.net/projects/phpqrcode/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xvbmdnZWFpc2lzaQ_size_16_color_FFFFFF_t_70]: /images/20220327/1eda355c8b9743a4a04966b7d7823fc2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xvbmdnZWFpc2lzaQ_size_16_color_FFFFFF_t_70 1]: /images/20220327/9cac1ecae0664e148a49806e81107ad2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xvbmdnZWFpc2lzaQ_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20190113224419474.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xvbmdnZWFpc2lzaQ==,size_16,color_FFFFFF,t_70