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- <?php
- //set it to writable location, a place for temp generated PNG files
- $PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'temp'.DIRECTORY_SEPARATOR;
-
- //html PNG location prefix
- $PNG_WEB_DIR = 'temp/';
- include "phpqrcode/qrlib.php";
-
- //ofcourse we need rights to create temp dir
- if (!file_exists($PNG_TEMP_DIR))
- mkdir($PNG_TEMP_DIR);
-
- $filename = $PNG_TEMP_DIR.'test.png';
-
- //processing form input
- //remember to sanitize user input in real-life solution !!!
- $errorCorrectionLevel = 'L';
- if (isset($_REQUEST['level']) && in_array($_REQUEST['level'], array('L','M','Q','H')))
- $errorCorrectionLevel = $_REQUEST['level'];
- $matrixPointSize = 4;
- if (isset($_REQUEST['size']))
- $matrixPointSize = min(max((int)$_REQUEST['size'], 1), 10);
- if (isset($_REQUEST['data'])) {
-
- //it's very important!
- if (trim($_REQUEST['data']) == '')
- die('data cannot be empty! <a href="?">back</a>');
-
- // user data
- $filename = $PNG_TEMP_DIR.'test'.md5($_REQUEST['data'].'|'.$errorCorrectionLevel.'|'.$matrixPointSize).'.png';
- QRcode::png($_REQUEST['data'], $filename, $errorCorrectionLevel, $matrixPointSize, 2);
-
- } else {
-
- //default data
- //echo 'You can provide data in GET parameter: <a href="?data=like_that">like that</a><hr/>';
- QRcode::png('PHP QR Code :)', $filename, $errorCorrectionLevel, $matrixPointSize, 2);
-
- }
-
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