例子，调用google接口来实现二维码。
- ?php
- $data = isset($_GET['t']) ? $_GET['t'] : 'http://www.XXX.com';
- $size = isset($_GET['size']) ? $_GET['size'] : '150x150';
- $logo = isset($_GET['logo']) ? $_GET['logo'] :"./image/logo.jpg";
- $chl = urlencode($logo);
- $png = "http://chart.googleapis.com/chart?chs=$size&cht=qr&chl=$chl&chld=L|1&choe=UTF-8";
- $QR = imagecreatefrompng($png);//外面那QR图
- //以下是二维码生成的主要代码
- if ($logo !== FALSE) {
- $logo = imagecreatefromstring(file_get_contents($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, $logo_height);
- }
- header('Content-type: image/png');
- imagepng($QR);
- //销毁二维码图像
- imagedestroy($QR);
- ?>
-
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