0, 'g' => 0, 'b' => 0, 'a' => 0]; // 前景色 const BACKGROUND_COLOR = ['r' => 255, 'g' => 255, 'b' => 255, 'a' => 0]; // 背景色 /** * QrcodeServer constructor. * @param $config */ public function __construct($config = []) { isset($config['generate']) && $this->_generate = $config['generate']; isset($config['encoding']) && $this->_encoding = $config['encoding']; isset($config['size']) && $this->_size = $config['size']; isset($config['logo']) && $this->_logo = $config['logo']; isset($config['logo_url']) && $this->_logo_url = $config['logo_url']; isset($config['logo_size']) && $this->_logo_size = $config['logo_size']; isset($config['title']) && $this->_title = $config['title']; isset($config['title_content']) && $this->_title_content = $config['title_content']; isset($config['file_path']) && $this->_file_path = $config['file_path']; } /** * 生成二维码 * @param $content * @return array|string * @throws \Endroid\QrCode\Exception\InvalidPathException */ public function createServer($content) { $this->_qr = new Qrcoder($content); $this->_qr->setSize($this->_size); $this->_qr->setWriterByName(self::WRITE_NAME); $this->_qr->setMargin(self::MARGIN); $this->_qr->setEncoding($this->_encoding); $this->_qr->setErrorCorrectionLevel(new ErrorCorrectionLevel(ErrorCorrectionLevel::HIGH)); // 容错率 $this->_qr->setForegroundColor(self::FOREGROUND_COLOR); $this->_qr->setBackgroundColor(self::BACKGROUND_COLOR); // 是否需要title if ($this->_title) { $this->_qr->setLabel($this->_title_content, 16, null, LabelAlignment::CENTER); } // 是否需要logo if ($this->_logo) { $this->_qr->setLogoPath($this->_logo_url); $this->_qr->setLogoWidth($this->_logo_size); } $this->_qr->setValidateResult(false); if ($this->_generate == 'display') { // 展示二维码 // 前端调用 例： header('Content-Type: ' . $this->_qr->getContentType()); return $this->_qr->writeString(); } else if ($this->_generate == 'writefile') { // 写入文件 return $this->generateImg($this->_file_path); } else { return ['success' => false, 'message' => 'the generate type not found', 'data' => '']; } } /** * 生成文件 * * @param $file_path * @return array */ public function generateImg($file_path) { $file_name = uniqid() . '.' . self::WRITE_NAME; $save_path = App::getRootPath() . 'public/' . $file_path; if (!file_exists($save_path)) { mkdir($save_path, 0777, true); } try { $save_file = $save_path . '/' . $file_name; $this->_qr->writeFile($save_file); // 添加logo $logo = 'logo.png';//准备好的logo图片 $QR = $save_file;//已经生成的原始二维码图 if ($logo !== FALSE) { $QR = imagecreatefromstring(file_get_contents($QR)); $logo = imagecreatefromstring(file_get_contents($logo)); $QR_width = imagesx($QR);//二维码图片宽度 $QR_height = imagesy($QR);//二维码图片高度 $logo_width = imagesx($logo);//logo图片宽度 $logo_height = imagesy($logo);//logo图片高度 $logo_qr_width = $QR_width / 5; $scale = $logo_width / $logo_qr_width; $logo_qr_height = $logo_height / $scale; $from_width = ($QR_width - $logo_qr_width) / 2; //重新组合图片并调整大小 imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height); } //输出图片 imagepng($QR, $save_file); // 数据返回 $data = [ 'url' => $file_path . '/' . $file_name, 'ext' => self::WRITE_NAME, ]; return ['success' => true, 'message' => 'write qrimg success', 'data' => $data]; } catch (\Exception $e) { return ['success' => false, 'message' => $e->getMessage(), 'data' => '']; } } }