php利用PHP QR Code生成二维码(带logo)
include
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:
<?php include "phpqrcode/phpqrcode.php"; $value="http://www.phprm.com"; $errorCorrectionLevel = "L"; $matrixPointSize = "4"; QRcode::png($value, false, $errorCorrectionLevel, $matrixPointSize); exit; ?>
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图片文件输出
<?php //文件输出 include('phpqrcode/phpqrcode.php'); // 二维码数据 $data = 'http://www.phprm.com'; // 生成的文件名 $filename = '1111.png'; // 纠错级别:L、M、Q、H $errorCorrectionLevel = 'L'; // 点的大小:1到10 $matrixPointSize = 4; QRcode::png($data, $filename, $errorCorrectionLevel, $matrixPointSize, 2); ?>
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生成中间带logo的二维码
<?php //生成中间带logo的二维码 include('phpqrcode/phpqrcode.php'); $value='http://www.phprm.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'); ?>
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