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@summerblue
Created September 6, 2013 09:14
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使用PHP生成带LOGO的个性化二维码图像
$data = 'http://www.putclub.com';
$size = '200x200';
$logo = './1.jpg'; // 中间那logo图
// 通过google api生成未加logo前的QR图,也可以自己使用RQcode类生成
$png = 'http://chart.googleapis.com/chart?chs=' . $size . '&cht=qr&chl=' . urlencode($data) . '&chld=L|1&choe=UTF-8';
$QR = imagecreatefrompng($png);
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);
imagedestroy($QR);
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