Use Thinkphp3.2 combined with phpqrcode to generate QR code
First, download phpqrcode and extract it to the project ThinkPHP\Library\Vendor directory.
Index_index.html (the template can be configured by yourself)
尺寸大小: 边距大小: 1px 2px 3px 5px 容错级别: Low (7%) Medium (15%) Quartile (25%) High (30%) 二维码内容: 二维码logo:
Controller: IndexController.class.php
<?php namespace Home\Controller; use Think\Controller; class IndexController extends Controller { public function index() { $config = array( 'maxSize' => 3145728, 'rootPath' => './upload/', 'savePath' => '', 'saveName' => array('uniqid',''), 'exts' => array('jpg', 'gif', 'png', 'jpeg'), 'autoSub' => true, 'subName' => array('date','Ymd'), ); $upload = new \Think\Upload($config); // 实例化上传类 // 上传单个文件 $info = $upload->uploadOne($_FILES['test']); if(!$info) { // 上传错误提示错误信息 $qrcode_path_new = './Public/Home/images/code'.'_'.date("Ymdhis").'.png'; $content = $_POST['content']; $matrixPointSize = $_POST['matrixPointSize']; $matrixMarginSize = $_POST['matrixMarginSize']; $errorCorrectionLevel = $_POST['errorCorrectionLevel']; makecode_no_pic($content,$qrcode_path_new,$matrixPointSize,$matrixMarginSize,$errorCorrectionLevel); $this->assign('img',$qrcode_path_new); } else { $qrcode_path = "./upload/".$info['savepath'].$info['savename']; $content = $_POST['content']; $matrixPointSize = $_POST['matrixPointSize']; $matrixMarginSize = $_POST['matrixMarginSize']; $errorCorrectionLevel = $_POST['errorCorrectionLevel']; $url = "./upload/qrcode/".date("YmdHis").".png"; makecode($qrcode_path,$content,$matrixPointSize,$matrixMarginSize,$errorCorrectionLevel,$url); $this->assign('img',$url); } $this->display(); } }
Then create a new function.php under the project Application/Home/Common
<?phpfunction makecode($qrcode_path,$content,$matrixPointSize,$matrixMarginSize,$errorCorrectionLevel,$url) { /** 参数详情: * $qrcode_path:logo地址 * $content:需要生成二维码的内容 * $matrixPointSize:二维码尺寸大小 * $matrixMarginSize:生成二维码的边距 * $errorCorrectionLevel:容错级别 * $url:生成的带logo的二维码地址 **/ ob_clean (); Vendor('phpqrcode.phpqrcode'); $object = new \QRcode(); $qrcode_path_new = './Public/Home/images/code'.'_'.date("Ymdhis").'.png'; //定义生成二维码的路径及名称 $object::png($content,$qrcode_path_new, $errorCorrectionLevel, $matrixPointSize, $matrixMarginSize); $QR = imagecreatefromstring(file_get_contents($qrcode_path_new)); //imagecreatefromstring:创建一个图像资源从字符串中的图像流 $logo = imagecreatefromstring(file_get_contents($qrcode_path)); $QR_width = imagesx($QR); // 获取图像宽度函数 $QR_height = imagesy($QR); //获取图像高度函数 $logo_width = imagesx($logo); // 获取图像宽度函数 $logo_height = imagesy($logo); //获取图像高度函数 $logo_qr_width = $QR_width / 4; //logo的宽度 $scale = $logo_width / $logo_qr_width; //计算比例 $logo_qr_height = $logo_height / $scale; //计算logo高度 $from_width = ($QR_width - $logo_qr_width) / 2; //规定logo的坐标位置 imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height); /** imagecopyresampled ( resource $dst_image , resource $src_image , int $dst_x , int $dst_y , int $src_x , int $src_y , int $dst_w , int $dst_h , int $src_w , int $src_h ) * 参数详情: * $dst_image:目标图象连接资源。 * $src_image:源图象连接资源。 * $dst_x:目标 X 坐标点。 * $dst_y:目标 Y 坐标点。 * $src_x:源的 X 坐标点。 * $src_y:源的 Y 坐标点。 * $dst_w:目标宽度。 * $dst_h:目标高度。 * $src_w:源图象的宽度。 * $src_h:源图象的高度。 **/ Header("Content-type: image/png"); //$url:定义生成带logo的二维码的地址及名称 imagepng($QR,$url); } function makecode_no_pic($content,$qrcode_path_new,$matrixPointSize,$matrixMarginSize,$errorCorrectionLevel) { ob_clean (); Vendor('phpqrcode.phpqrcode'); $object = new \QRcode(); $object::png($content,$qrcode_path_new, $errorCorrectionLevel, $matrixPointSize, $matrixMarginSize); }
When there is no picture uploaded, the QR code generated is just a simple QR code. Only when a logo is uploaded, the QR code with the logo will be generated.
The picture below is the QR code generated when there is no logo:
The picture below is The QR code generated when a picture is uploaded:
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