Thinkphp3.2结合phpqrcode生成二维码（含Logo的二维码），附案例

<form action="{:U(‘index/index‘)}" enctype="multipart/form-data" ?method = "post"> ???<b>尺寸大小：</b> ???????<input type="text" name = "matrixPointSize"> ???<br> ???<b>边距大小：</b> ???????<select class="form-control" name="matrixMarginSize" > ???????????<option value="1" selected="selected">1px</option> ???????????<option value="2">2px</option> ???????????<option value="3">3px</option> ???????????<option value="4">5px</option> ???????</select><br> ???<b>容错级别：</b> ???????<select class="form-control" name="errorCorrectionLevel" id="errorCorrectionLevel"> ???????<option value="L">Low (7%)</option> ???????<option value="M" selected="selected">Medium (15%)</option> ???????<option value="Q">Quartile (25%)</option> ???????<option value="H">High (30%)</option> ???????</select><br> ???<b>二维码内容：</b> ???????<input type="text" name = "content"> ???<br> ???<b>二维码logo：</b> ???????<input type="file" name = "test" /><br><br> ???<input type="submit" value = "生成二维码"></form>
<img src="{$img}" >

<?phpnamespace 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(); ???}}

<?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); ???}