php开发扫描二维码登录,php二维码解析

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1-下载类库

composer require aferrandini/phpqrcode -vvv

2-commonphp开发扫描二维码登录的 ***

//$text 文本php开发扫描二维码登录的内容//$logo logo图片function code($text,$logo){ //二维码图片保存路径 $pathname = APP_PATH . '/../Public/upload/'; if(!is_dir($pathname)) { //若目录不存在则创建之 mkdir($pathname); } vendor("phpqrcode.phpqrcode"); //二维码图片保存路径(若不生成文件则设置为false) $filename = $pathname . "/qrcode_" . time() . ".png";//二维码容错率php开发扫描二维码登录，默认L $level = "L";//二维码图片每个黑点php开发扫描二维码登录的像素，默认4 $size = '10';//二维码边框的间距，默认2 $padding = 2;//保存二维码图片并显示出来，$filename必须传递文件路径 $saveandprint = true; //生成二维码图片 \PHPQRCode\QRcode::png($text,$filename,$level,$size,$padding,$saveandprint); //二维码logo $QR = imagecreatefromstring(file_get_contents($filename)); $logo = imagecreatefromstring(file_get_contents($logo)); $QR_width = imagesx($QR); $QR_height = imagesy($QR); $logo_width = imagesx($logo); $logo_height = imagesy($logo); $logo_qr_width = $QR_width / 5; $scale = $logo_width / $logo_qr_width; $logo_qr_height = $logo_height / $scale; $from_width = ($QR_width - $logo_qr_width) / 2; imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height); imagepng($QR,$filename);return $filename;}

3--控制器

public function code(){ $logo=request()->file("file"); $pathImg=""; //移动文件到框架应用更目录的public/uploads/ $info = $logo->move(ROOT_PATH . 'public' . DS . 'upload' . DS . 'admin' . DS . date('Y') . DS . date('m-d'),md5(microtime(true))); if ($info) { $pathImg = "./public/upload/admin/" . date('Y') . '/' . date('m-d') . '/' . $info->getFilename(); } else { //错误提示用户 return $this->error($logo->getError()); } $logo=$pathImg; //二维码URL参数 $text = "http://www.baidu.com"; $filename=code($text,$logo); echo "<img src='$filename'>"; $image = \think\Image::open('./public/images/q.png'); // 给原图居中添加透明度为100的水印并保存到$a.png $a="./public/upload/11.jpg"; $image->water('./public/upload/qrcode_1536730572.png',\think \Image::WATER_CENTER,100)->save($a); }

4-html 代码

<!doctype html><html lang="en"><head> <meta charset="UTF-8" /> <title>Document</title> </head><body> <form action="http://127.0.0.1:99/admin/admin/code" method="post" enctype="multipart/form-data"> <div class="row cl"> <label class="form-label col-xs-4 col- *** -3">照片：</label> <div class="col-xs-8 col- *** -9"> <input type="file" id="file" name="file" > </div> </div> <div class="row cl"> <div class="col-xs-8 col- *** -9 col-xs-offset-4 col- *** -offset-3"> <input type="submit" value="提交"> </div> </div> </form> </body></html>

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发布于 2024-08-20 15:08:40

php开发扫描二维码登录