php生成二维码和QR图片中间加logo

<?php /**  * php生成二维码的2种方式  * @author insun  */ //1.google开放api $urlToEncode="smart_insun"; generateQRfromGoogle($urlToEncode); function generateQRfromGoogle($chl,$widhtHeight ='150',$EC_level='L',$margin='0') {  //$url = urlencode($url);  echo '<img src="http://chart.apis.google.com/chart?chs='.$widhtHeight.'x'.$widhtHeight.'&cht=qr&chld='.$EC_level.'|'.$margin.'&chl='.$chl.'" alt="QR code" widhtHeight="'.$widhtHeight.'" widhtHeight="'.$widhtHeight.'"/>'; } //2.php类库PHP QR Code:http://phpqrcode.sourceforge.net/ /* $data 数据 $filename 保存的图片名称 $errorCorrectionLevel 错误处理级别 $matrixPointSize 每个黑点的像素 $margin 图片外围的白色边框像素 */ include "phpqrcode/qrlib.php"; $data = "insun"; $filename ="QR.jpg"; $errorCorrectionLevel = 'L'; $matrixPointSize = 2; $margin = 5; QRcode::png($data, $filename, $errorCorrectionLevel, $matrixPointSize, $margin);//这样就生成了QR.jpg 

QR图片中间加logo

<?php /**  * QR Code + Logo Generator QR图片中间加logo，QR是根据google开放api生成的，其实啥都没有   *    * http://labs.nticompassinc.com     */  //ini_set("auto_detect_line_endings", true);    $data = isset($_GET['data']) ? $_GET['data'] : 'http://weixin.qq.com/r/8bxsY6LEqpzVh7MAn_nV';  $size = isset($_GET['size']) ? $_GET['size'] : '200x200';  $logo = isset($_GET['logo']) ? $_GET['logo'] : './logo.jpg';//中间那logo图  // Get QR Code image from Google Chart API  // http://code.google.com/apis/chart/infographics/docs/qr_codes.html  //https://chart.googleapis.com/chart?cht=qr&chld=H|1&chs='.$size.'&chl='.urlencode($data));  $png = "http://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=Hello+world&chld=L|1&choe=UTF-8";  $QR = imagecreatefrompng($png);//Warning: imagecreatefrompng() [function.imagecreatefrompng]: Unable to find the wrapper "https" - did you forget to enable it when you configured PHP? =  //$QR = imagecreatefrompng('./chart.png');//外面那QR图  if($logo !== FALSE){   $logo = imagecreatefromstring(file_get_contents($logo));     $QR_width = imagesx($QR);   $QR_height = imagesy($QR);          $logo_width = imagesx($logo);   $logo_height = imagesy($logo);             // Scale logo to fit in the QR Code   $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;   //echo $from_width;exit;   imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height);  }  header('Content-type: image/png');  imagepng($QR);  imagedestroy($QR); ?>