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这段有个小项目要用到二维码生成,而且要求二维码中间带有一个LOGO图标,索性就查了些资料,发现有一个PHP 类库phpqrcode对生成这种二维码很方便,下面把自己的用法和代码与大家分享,具体代码:
- <?php
- include ('phpqrcode.php');
- $value = 'www.codesc.net';//二维码数据
- $errorCorrectionLevel = 'L';//纠错级别:L、M、Q、H
- $matrixPointSize = 10;//二维码点的大小:1到10
- QRcode::png ( $value, 'ewm.png', $errorCorrectionLevel, $matrixPointSize, 2 );//不带Logo二维码的文件名
- echo "二维码已生成" . "<br />";
- $logo = 'emwlogo.gif';//需要显示在二维码中的Logo图像
- $QR = 'ewm.png';
- if ($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, 'ewmlogo.png' );//带Logo二维码的文件名
- ?>
文中所用到的phpqrcode.php类库可以在这里下载:
http://www.codesc.net/source/3782.shtml
http://sourceforge.net/projects/phpqrcode/ |
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