PHP generates a QR code image with logo _php tutorial

Source: Internet
Author: User
Tags urlencode
Now two-dimensional code is some of our software station or download station commonly used a thing, in particular, will use two-dimensional code to add friends, below I will introduce the use of PHP to generate a number of two-dimensional code methods.

Method One this generation is a two-dimensional code in the middle without pictures, directly call Google a feature to achieve.

The code is as follows Copy Code

$urlToEncode = "http://gz.altmi.com";
Generateqrfromgoogle ($urlToEncode);
function Generateqrfromgoogle ($chl, $widhtHeight = ' Max ', $EC _level= ' L ', $margin = ' 0 ')
{
$url = UrlEncode ($url);
Echo ';
}


Generate like the logo in the middle there are two-dimensional code

The code is as follows Copy Code

QR Code + logo Generator qr image in the middle plus 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 ';//logo map in the middle


$chl = UrlEncode ($logo);
$png = "http://chart.googleapis.com/chart?chs= $size &cht=qr&chl= $chl &chld=l|1&choe=utf-8";
$QR = Imagecreatefrompng ($png);//Outside that QR chart
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);


Finally share some common QR code generation plugin download Address

Address: http://phpqrcode.sourceforge.net/
Download: http://sourceforge.net/projects/phpqrcode/

3.libqrencode

Address: http://fukuchi.org/works/qrencode/index.en.html
PHP support please refer to: http://hirokawa.netflowers.jp/entry/4900/

4.QRcode Perl CGI & PHP Scripts
Address: http://www.swetake.com/qr/qr_cgi.html


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