Thinkphp3.2.3 integrates phpqrcode to generate QR code sample code sharing

public function qrcode($url="www.baidu.com",$level=3,$size=4)

    {

              Vendor('phpqrcode.phpqrcode');             

              $errorCorrectionLevel =intval($level) ;//容错级别

              $matrixPointSize = intval($size);//生成图片大小

             //生成二维码图片

              $object = new \QRcode();             

              $object->png($url, false, $errorCorrectionLevel, $matrixPointSize, 2);  

    }

include 'phpqrcode.php';   

$value = 'http://www.cnblogs.com/txw1958/';

//二维码内容  

$errorCorrectionLevel = 'L';//容错级别  

$matrixPointSize = 6;//生成图片大小   //生成二维码图片  

QRcode::png($value, 'qrcode.png', $errorCorrectionLevel, $matrixPointSize, 2);  

$logo = 'logo.png';//准备好的logo图片  

$QR = 'qrcode.png';//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   imagepng($QR, 'helloweixin.png');  

echo '<img src="helloweixin.png">';