直接上代码，phpqrcode包自行下载。

<?phpclass ControllerTestQrcode extends Controller
{/*** 用於生成一個二維碼*/public function index(){include_once DIR_PHPQRCODE."phpqrcode.php";$size = floor(($this->request->get['width'] ?? 150)/37*100)/100;$qrcode = new \QRcode();$type = $this->request->get['type'] ?? 1;$code = $this->request->get['code'] ?? '';// 拼接二维码图片地址$shareimg = $code . '.png';$file_path = $this->creatMkdirs(DIR_IMAGE.'phpqrcode/'.date('Ymd').'/');$shareimg =  $file_path. $shareimg;/**** png参数说明：* text: 待生成二维码的字符串* outfile: false(表示已文件流的形式输出)* level: 容错率，即二维码损坏多少%任然可以识别(L:7%, M:15%, Q:25%, H:30%)* size: 二维码大小，默认为4 $size = floor($width/37*100)/100 + 0.01  $width 为二维码的宽度 px* margin: 内边距*/if($type == 1){$qrcode->png($code, $shareimg, 'H', $size, 1, false, 0x000000, 0xFFFF00);} elseif($type == 0){$qrcode->png($code, $shareimg, 'H', $size, 1, false, 0x2A314E, 0x8090C6);} else{$qrcode->png($code, $shareimg, 'H', $size, 3, false);}// 先读取存好的二维码图片,再追加文字$image = imagecreatefrompng($shareimg);$image_width = imagesx($image);$image_height = imagesy($image);// 字体文件$font =   DIR_PHPQRCODE.'font/simsun.ttc'; // 字体文件// 文字颜色$color = imagecolorallocate($image,0,0,0);$text_height = ($image_height-5);$text_width = ($image_width/2-70);imagettftext($image, 15, 0, $text_width, $text_height, $color, $font, '编码：-123456'); // 创建文字(编码)imagepng($image, $shareimg);header("Content-type:image/png");imagepng($image);}public function test(){echo 'data:' . getimagesize('http://www.boomtheatrehk.com/index.php?route=test/qrcode&code=84,146&width=400&type=2')['mime'] . ';base64,' . chunk_split(base64_encode(file_get_contents('http://www.boomtheatrehk.com/index.php?route=test/qrcode&code=84,146&width=400&type=2')));}function creatMkdirs($path){if(!is_dir($path)){if(!$this->creatMkdirs(dirname($path))){return false;}if(!mkdir($path,0777)){return false;}}return $path;}}

仅个人记录