PHP generates QR code image with LOGO_PHP tutorial-PHP Tutorial-php.cn

PHP generates QR code image with LOGO_PHP tutorial

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Release： 2016-07-20 11:11:34

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Nowadays, QR codes are commonly used in some of our software sites or download sites. In particular, WeChat uses QR codes to add friends. Now I will introduce various methods of using PHP to generate QR codes.

Method 1 This kind of generation is a QR code without a picture in the middle. It can be realized by directly calling a function of Google.

The code is as follows

代码如下	复制代码
$urlToEncode="http://gz.altmi.com"; generateQRfromGoogle($urlToEncode); function generateQRfromGoogle($chl,$widhtHeight ='150',$EC_level='L',$margin='0') { $url = urlencode($url); echo ''; }

Copy code

$urlToEncode="http://gz.altmi.com";

代码如下

复制代码

// QR Code + Logo Generator QR图片中间加logo
$data = isset($_GET['data']) ? $_GET['data'] : 'http://www.hzhuti.com';
$size = isset($_GET['size']) ? $_GET['size'] : '130x130';
$logo = isset($_GET['logo']) ? $_GET['logo'] : './20130128160755.jpg';//中间那logo图

$chl = urlencode($logo);
$png = "http://chart.googleapis.com/chart?chs=$size&cht=qr&chl=$chl&chld=L|1&choe=UTF-8";
$QR = imagecreatefrompng($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);
$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, $logo_height);
}
header('Content-type: image/png');
imagepng($QR);
imagedestroy($QR);

generateQRfromGoogle($urlToEncode);

function generateQRfromGoogle($chl,$widhtHeight ='150',$EC_level= 'L',$margin='0')
{

$url = urlencode($url);

echo ' QR code ';
}

Generate like WeChat There is a logo QR code in the middle

// QR Code + Logo Generator Add logo in the middle of the QR image

The code is as follows	Copy code

$data = isset($_GET['data']) ? $_GET['data'] : 'http://www.hzhuti.com';
$size = isset($_GET['size']) ? $_GET['size'] : '130x130';$logo = isset($ _GET['logo']) ? $_GET['logo'] : './20130128160755.jpg';//The logo picture in the middle

$from_width = ($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);}

header('Content-type: image/png');

imagepng($QR);imagedestroy($ QR); Finally share the download address of some commonly used QR code generation plug-ins Address: http://phpqrcode.sourceforge.net /Download: http://sourceforge.net/projects/phpqrcode/3.libqrencodeAddress: http://fukuchi.org/works/qrencode/index.en .htmlPHP support please refer to: http://hirokawa.netflowers.jp/entry/4900/4.QRcode Perl CGI & PHP scriptsAddress: http://www.swetake .com/qr/qr_cgi.html http://www.bkjia.com/PHPjc/444625.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/444625.htmlTechArticleNow QR code is a commonly used thing in some of our software sites or download sites, especially WeChat. Use QR code to add friends. Below I will introduce various methods to generate QR code using php...