Laravel使用PHPQRCODE实现生成带有LOGO的二维码图片功能示例

/*** 利用phpqrcode来实现生成带有logo的二维码图片*/public function getQrCode(Request $request){    $type  =  $request->input('type');//传递的类型 ios | android    require_once(dirname(__FILE__) . '/phpqrcode/' . 'phpqrcode.php');    $errorCorrectionLevel = 'H'; // 错误校正    $matrixPointSize = 5; // 边界空白位置    $QRcode =  new /QRcode;    if($type){      if($type == 'ios'){        $value =  'http://www.ios.com'; // 二维码存放的内容        $QRcode->png($value, 'ios.png', $errorCorrectionLevel, $matrixPointSize, 2); //生成二维码        //echo "二维码已生成";        $logo = 'logo.png';//logo的图片地址        //echo " <img src='../../../public/logo.png'>";        $QR = 'ios.png'; //二维码图片地址        //echo " <img src='../../../ios.png'>";        if($logo !== FALSE){          $QR = imagecreatefromstring(file_get_contents($QR));          $logo = imagecreatefromstring(file_get_contents($logo));          $QR_width = imagesx($QR);          $QR_height = imagesy($QR);          $logo_width = imagesx($logo);          $logo_height = imagesy($logo);          $logo_qr_width = $QR_width / 5;          $scale = $logo_width / $logo_qr_width;          $logo_qr_height = $logo_height / $scale;          $from_width = ($QR_width - $logo_qr_width) / 2;          imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height);        }        imagepng($QR,'ios.png'); //跟logo合并之后的地址        $a   =  'http://www.ios.com/ios.png';        $status =  0;        $msg  =  $a;      }elseif($type == 'android'){          $value =  'http://www.android.com'; // 二维码存放的内容          //var_dump($value);          $QRcode->png($value, 'android.png', $errorCorrectionLevel, $matrixPointSize, 2); //生成二维码          //echo "二维码已生成";          $logo = 'logo.png';//logo的图片地址          //echo " <img src='../../../public/logo.png'>";          $QR = 'android.png'; //二维码图片地址          //echo " <img src='../../../android.png'>";          if($logo !== FALSE){            $QR = imagecreatefromstring(file_get_contents($QR));            $logo = imagecreatefromstring(file_get_contents($logo));            $QR_width = imagesx($QR);            $QR_height = imagesy($QR);            $logo_width = imagesx($logo);            $logo_height = imagesy($logo);            $logo_qr_width = $QR_width / 5;            $scale = $logo_width / $logo_qr_width;            $logo_qr_height = $logo_height / $scale;            $from_width = ($QR_width - $logo_qr_width) / 2;            imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height);          }          imagepng($QR,'android.png'); //跟logo合并之后的地址          $a   =  'http://www.android.com/android.png';          $status =  0;          $msg  =  $a;      }else{        $status =  1;        $msg  =  '没有该类型！';      }      //QRcode::png($value, 'sunny.png', $errorCorrectionLevel, $matrixPointSize, 2); //生成二维码    }else{      $status =  2;      $msg  =  '参数传递不完整！';    }    return response()->json(['status' => $status,'msg' => $msg])->header('Access-Control-Allow-Origin', '*');}