public function Xian(){$tid = 2;  //扫描二维码传入的id值//二维码生成$url = "http://www.baidu.com";$level=3;$size=4;Vendor('phpqrcode.phpqrcode');$errorCorrectionLevel = intval($level) ;//容错级别$matrixPointSize = intval($size);//生成图片大小$object = new \QRcode(); //调用二维码插件$path = "Public/ER/" . $tid . ".png"; //本地文件存储路径$object->png($url, $path, $errorCorrectionLevel, $matrixPointSize, 2);//二维码生成//图片所需要的内容$headimgurl = "https://image.so.com/view?q=%E6%A8%B1%E8%8A%B1%E5%9B%BE%E7%89%87&listsrc=sobox&listsign=15d7d9ebd0cd621a7e74c66a2b57aff2&src=360pic_strong&correct=%E6%A8%B1%E8%8A%B1%E5%9B%BE%E7%89%87&ancestor=list&cmsid=a7ec45ccb1b3e723a083d57001e3165b&cmran=0&cmras=6&cn=0&gn=0&kn=28&offspring=85bc14812e545b0c30263ea459328a2b&multiple=0&gsrc=1&currsn=0&jdx=17";//头像可以通过数据库查找替换$nickname = "你好";  //昵称可以通过数据库查找替换$erid = 2; //这个是保存的图片的名字，可以通过数据库进行替换$header = array(
'User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:45.0) Gecko/20100101 Firefox/45.0',
'Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3',
'Accept-Encoding: gzip, deflate',);$url=$headimgurl;$curl = curl_init();curl_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);curl_setopt($curl, CURLOPT_ENCODING, 'gzip');curl_setopt($curl, CURLOPT_HTTPHEADER, $header);$data = curl_exec($curl);$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);curl_close($curl);if ($code == 200) {//把URL格式的图片转成base64_encode格式的！$imgBase64Code = "data:image/jpeg;base64," . base64_encode($data);}$img_content=$imgBase64Code;  //图片内容if (preg_match('/^(data:\s*image\/(\w+);base64,)/', $img_content, $result)){$type = $result[2];  //得到图片类型png?jpg?gif?$new_file = 'Public/ER/'.$erid.'.'.$type;  //图片的路径找到图片if (file_put_contents($new_file, base64_decode(str_replace($result[1], '', $img_content)))){  $config = array('text'=>array(array('text'=>$nickname,  //微信用户昵称'left'=>750,'top'=>310,'fontPath'=>'Public/bootstrap/fonts/simhei.ttf', //字体文件'fontSize'=>44, //字号'fontColor'=>'0,147,82', //字体颜色'angle'=>0,)),'image'=>array(array('url'=>'Public/ER/'.$erid.'.png',//用户的生成的二维码'left'=>422,'top'=>-200,'stream'=>0,//图片资源是否是字符串图像流'right'=>0,'bottom'=>0,'width'=>500,'height'=>500,'opacity'=>100),array('url'=>$new_file,  //用户头像'left'=>280,'top'=>255,'right'=>0,'stream'=>0,'bottom'=>0,'width'=>200,'height'=>200,'opacity'=>100),),'background'=>'Public/img/hai.jpg',  //合成用的背景图);$filename = 'Public/ER/'.$erid.'.jpg';$filurl = $erid.'.jpg';$this->createPoster($config,$filename);  //调用方法传值，1.合成图片用到的昵称、背景图、二维码 $this->assign("filurl",$filurl);  //注入前端显示$this->show();}}}

/*** 生成宣传海报* @param  array   参数,包括图片和文字* @param  string     $filename 生成海报文件名,不传此参数则不生成文件,直接输出图片* @return [type] [description]*/function createPoster($config=array(),$filename=""){//如果要看报什么错，可以先注释调这个header if(empty($filename)) header("content-type: image/png");$imageDefault = array('left'=>0,'top'=>0,'right'=>0,'bottom'=>0,'width'=>100,'height'=>100,'opacity'=>100);$textDefault =  array('text'=>'','left'=>0,'top'=>0,'fontSize'=>40,             //字号'fontColor'=>'255,255,255', //字体颜色'angle'=>0,);$background = $config['background'];//海报最底层得背景  //背景方法$backgroundInfo = getimagesize($background);$backgroundFun = 'imagecreatefrom'.image_type_to_extension($backgroundInfo[2], false);$background = $backgroundFun($background);$backgroundWidth = imagesx($background);    //背景宽度$backgroundHeight = imagesy($background);   //背景高度$imageRes = imageCreatetruecolor($backgroundWidth,$backgroundHeight); $color = imagecolorallocate($imageRes, 0, 0, 0);  imagefill($imageRes, 0, 0, $color);  //imageColorTransparent($imageRes, $color);    //颜色透明imagecopyresampled($imageRes,$background,0,0,0,0,imagesx($background),imagesy($background),imagesx($background),imagesy($background));  //处理了图片if(!empty($config['image'])){foreach ($config['image'] as $key => $val) {$val = array_merge($imageDefault,$val);$info = getimagesize($val['url']);$function = 'imagecreatefrom'.image_type_to_extension($info[2], false);if($val['stream']){       //如果传的是字符串图像流$info = getimagesizefromstring($val['url']);$function = 'imagecreatefromstring';}$res = $function($val['url']);$resWidth = $info[0];$resHeight = $info[1];//建立画板 ，缩放图片至指定尺寸$canvas=imagecreatetruecolor($val['width'], $val['height']); imagefill($canvas, 0, 0, $color);//关键函数，参数（目标资源，源，目标资源的开始坐标x,y, 源资源的开始坐标x,y,目标资源的宽高w,h,源资源的宽高w,h） imagecopyresampled($canvas, $res, 0, 0, 0, 0, $val['width'], $val['height'],$resWidth,$resHeight); $val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']) - $val['width']:$val['left'];$val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']) - $val['height']:$val['top'];//放置图像imagecopymerge($imageRes,$canvas, $val['left'],$val['top'],$val['right'],$val['bottom'],$val['width'],$val['height'],$val['opacity']);//左，上，右，下，宽度，高度，透明度 }}//处理文字if(!empty($config['text'])){foreach ($config['text'] as $key => $val) {$val = array_merge($textDefault,$val);list($R,$G,$B) = explode(',', $val['fontColor']);$fontColor = imagecolorallocate($imageRes, $R, $G, $B); $val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']):$val['left'];$val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']):$val['top'];imagettftext($imageRes,$val['fontSize'],$val['angle'],$val['left'],$val['top'],$fontColor,$val['fontPath'],$val['text']); }}//生成图片  if(!empty($filename)){$res = imagejpeg ($imageRes,$filename,90); //保存到本地imagedestroy($imageRes);if(!$res) return false;return $filename;}else{imagejpeg ($imageRes);           //在浏览器上显示imagedestroy($imageRes);}  }