php利用PHP QR Code生成二维码(带logo)
我们要生成二维码都需要借助一些类库来实现了,下面我介绍利用PHP QR Code生成二维码吧,生成方法很简单,下面我来介绍一下.
利用php类库PHP QR Code来实现,不需要装额外的php扩展,首先下载类库包,有时候地址打不开,地址:http://phpqrcode.sourceforge.net/
下载:http://sourceforge.net/projects/phpqrcode/
使用时一般引入phpqrcode.php文件即可,具体使用方法举例,直接浏览器输出,代码如下:
- <?php
- include "phpqrcode/phpqrcode.php";
- $value="http://www.phpfensi.com";
- $errorCorrectionLevel = "L";
- $matrixPointSize = "4";
- QRcode::png($value, false, $errorCorrectionLevel, $matrixPointSize);
- exit;
- ?>
图片文件输出,代码如下:
- <?php
-
- include('phpqrcode/phpqrcode.php');
-
- $data = 'http://www.phpfensi.com';
-
- $filename = '1111.png';
-
- $errorCorrectionLevel = 'L';
-
- $matrixPointSize = 4;
- QRcode::png($data, $filename, $errorCorrectionLevel, $matrixPointSize, 2);
- ?>
生成中间带logo的二维码,代码如下:
- <?php
-
-
- include('phpqrcode/phpqrcode.php');
- $value='http://www.phpfensi.com';
- $errorCorrectionLevel = 'L';
- $matrixPointSize = 10;
- QRcode::png($value, 'xiangyang.png', $errorCorrectionLevel, $matrixPointSize, 2);
- echo "QR code generated"."<br />";
- $logo = 'bdlogo.gif';
- $QR = 'xiangyang.png';
-
- if($logo !== FALSE)
- {
-
- $QR = imagecreatefromstring(file_get_contents($QR));
- $logo = imagecreatefromstring(file_get_contents($logo));
- $QR_width = imagesx($QR);
- $QR_height = imagesy($QR);
- $logo_width = imagesx($logo);
- $logo_height = imagesy($logo);
- $logo_qr_width = $QR_width / 5;
- $scale = $logo_width / $logo_qr_width;
- $logo_qr_height = $logo_height / $scale;
- $from_width = ($QR_width - $logo_qr_width) / 2;
- imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height);
- }
- imagepng($QR,'xiangyanglog.png');
- ?>