false, 'error' => '内容不能为空']);
exit;
}
ob_start();
QRcode::png($text, false, QR_ECLEVEL_H, 10, 2);
$imageData = ob_get_contents();
ob_end_clean();
$base64 = 'data:image/png;base64,' . base64_encode($imageData);
echo json_encode(['success' => true, 'image' => $base64]);
exit;
}
if (isset($_POST['action']) && $_POST['action'] === 'generate_with_logo') {
$text = $_POST['text'] ?? '';
if (empty($text)) {
echo json_encode(['success' => false, 'error' => '内容不能为空']);
exit;
}
if (!isset($_FILES['logo']) || $_FILES['logo']['error'] !== UPLOAD_ERR_OK) {
echo json_encode(['success' => false, 'error' => '请上传Logo图片']);
exit;
}
// 生成二维码
$tempFile = tempnam(sys_get_temp_dir(), 'qr');
QRcode::png($text, $tempFile, QR_ECLEVEL_H, 10, 2);
// 处理Logo
$logo = $_FILES['logo']['tmp_name'];
$qrImage = imagecreatefrompng($tempFile);
$logoInfo = getimagesize($logo);
switch ($logoInfo[2]) {
case IMAGETYPE_JPEG:
$logoImage = imagecreatefromjpeg($logo);
break;
case IMAGETYPE_PNG:
$logoImage = imagecreatefrompng($logo);
break;
case IMAGETYPE_GIF:
$logoImage = imagecreatefromgif($logo);
break;
default:
echo json_encode(['success' => false, 'error' => '不支持的图片格式']);
exit;
}
// 调整Logo大小
$qrWidth = imagesx($qrImage);
$qrHeight = imagesy($qrImage);
$logoWidth = imagesx($logoImage);
$logoHeight = imagesy($logoImage);
$logoQrWidth = $qrWidth / 4;
$logoQrHeight = $logoHeight * $logoQrWidth / $logoWidth;
$logoResized = imagecreatetruecolor($logoQrWidth, $logoQrHeight);
imagecopyresampled($logoResized, $logoImage, 0, 0, 0, 0, $logoQrWidth, $logoQrHeight, $logoWidth, $logoHeight);
// 合并图片
$logoX = ($qrWidth - $logoQrWidth) / 2;
$logoY = ($qrHeight - $logoQrHeight) / 2;
imagecopy($qrImage, $logoResized, $logoX, $logoY, 0, 0, $logoQrWidth, $logoQrHeight);
// 输出
ob_start();
imagepng($qrImage);
$imageData = ob_get_contents();
ob_end_clean();
imagedestroy($qrImage);
imagedestroy($logoImage);
imagedestroy($logoResized);
unlink($tempFile);
$base64 = 'data:image/png;base64,' . base64_encode($imageData);
echo json_encode(['success' => true, 'image' => $base64]);
exit;
}
}
?>
二维码生成系统