thinkphp下使用qrcode类制作二维码

<?php ???????/** ?????* 地址:http://phpqrcode.sourceforge.net/ ????* @param string $url 要生成的链接 ?????* @param string $logo 中间图片地址 ?????* @param string $dir 保存图片的绝对路径 ?????*/ ????function qrcode($url=‘www.hao123.com/‘,$logo=‘./assets/img/gm.jpg‘){ ???????Loader::import(‘phpqrcode.phpqrcode‘); ????????$value = $url; //二维码内容 链接 ???????$errorCorrectionLevel = ‘M‘;//容错级别 ????????$matrixPointSize = 8;//生成图片大小 ????????$dir=ROOT_PATH . ‘public‘.DS.‘uploads‘.DS.‘qrcode‘.DS; //输出图片的路径 ???????$qr_dir= $dir.‘qrcode.png‘;//原始二维码路径 ??????????????//生成二维码图片 ????????\QRcode::png($value, ?$qr_dir, $errorCorrectionLevel, $matrixPointSize, 2); ????????$logo = $logo;//准备好的logo图片 ????????$QR = ?$qr_dir;//已经生成的原始二维码图 ????????if ($logo !== FALSE) { ????????????$QR = imagecreatefromstring(file_get_contents($QR)); ????????????$logo = imagecreatefromstring(file_get_contents($logo)); ????????????$QR_width = imagesx($QR);//二维码图片宽度 ????????????$QR_height = imagesy($QR);//二维码图片高度 ????????????$logo_width = imagesx($logo);//logo图片宽度 ????????????$logo_height = imagesy($logo);//logo图片高度 ????????????$logo_qr_width = $QR_width / 5; ????????????$scale = $logo_width/$logo_qr_width; ????????????$logo_qr_height = $logo_height/$scale; ????????????$from_width = ($QR_width - $logo_qr_width) / 2; ????????????//重新组合图片并调整大小 ????????????imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, ????????????$logo_qr_height, $logo_width, $logo_height); ????????} ????????//输出图片 ????????$he_dir= $dir.‘helloweba.png‘;//重组图片路径 ???????imagepng($QR, $he_dir); ???????$url_display=$he_dir; ???????$this->view->assign(‘url_display‘,$url_display); ???????return $this->view->fetch(); ???}