用php qrcode生成二维码,怎么输出？

Question

   $data = 'www.baidu.com'; 
    include 'phpqrcode.php';    $QRcode = new \QRcode();
    ob_start();    $QRcode->png($data);    $imageString = base64_encode(ob_get_contents());
    ob_end_clean();    echo $imageString;

   为什么上面的代码没有输出,要在php里直接生成二维码转base给前端?

Answer 1

Use php qrcode to generate a QR code, how to output it? -PHP Chinese website Q&A-Use php qrcode to generate QR code, how to output it? -PHP Chinese website Q&A

Let’s take a look and learn.

Answer 2

首先你要知道，输出二维码是个图片，你要设置下header吧

header('Content-type: image/jpeg');
header('Content-Disposition: attachment; 
filename=download_name.jpg');readfile($yourFilePath);