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What QR code API is generally used to generate QR codes? The purpose is for platform distribution
What QR code API is generally used to generate QR codes? The purpose is for platform distribution
Describe the specific usage scenario. PHP can use the third-party library qrcode
qrcode class library
TP’s
<code> vendor("phpqrcode.phpqrcode"); $QRcode = new QRcode(); $data = $data?$data:'二维码生成有误,联系管理员处理!'; // 纠错级别:L、M、Q、H $level = 'L'; // 点的大小:1到10,用于手机端4就可以了 $size = 8; //下面注释了把二维码图片保存到本地的代码,如果要保存图片,用$fileName替换第二个参数false $path ="./Public/Upload/QrcPic/"; if(!is_dir($path)){ mkdir($path,0777,true); } // 生成的文件名 $fileName =$prefix.$sid.'.png'; //判断文件是否存在,存在返回二维码图片名字 // $checkFile = $path.$fileName; if(file_exists($checkFile)){ return $fileName; exit; } // 输出图处流 //QRCimg=QRcode::png($data, $fileName, $level, $size, $padding); $QRcode->png($data,$path.$fileName,$level,$size, $padding);</code>