生成二维码QrCode

use Endroid\QrCode\ErrorCorrectionLevel;

use Endroid\QrCode\QrCode;

$code = 'www.baidu.com';

$qrCode = new QrCode($code);

$qrCode->setSize(300);

$qrCode->setWriterByName('png');

$qrCode->setMargin(10);

$qrCode->setEncoding('UTF-8');

$qrCode->setErrorCorrectionLevel(ErrorCorrectionLevel::HIGH);

$qrCode->setForegroundColor(['r' => 0, 'g' => 0, 'b' => 0, 'a' => 0]);

$qrCode->setBackgroundColor(['r' => 255, 'g' => 255, 'b' => 255, 'a' => 0]);

$qrCode->setValidateResult(false);

//header('Content-Type: '.$qrCode->getContentType());

//echo $qrCode->writeString() ;

$str = base64_encode($qrCode->writeString());

composer引入组件composer require endroid/qr-code

如上调用就可以生成二维码的图片码，打开注释并注释最后一行，就可以在浏览器输出二维码

composer qr-code查看文档地址：

https://packagist.org/packages/endroid/qr-code