QRCODE in voucher

qrcode/index.php

@@ -0,0 +1,43 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Exemplatory usage
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+include "qrlib.php";
+
+
+//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);
+
+
+    //it's very important!
+    if (trim($_REQUEST['data']) == '')
+        die('?data=text');
+QRcode::png($_REQUEST['data'], false, $errorCorrectionLevel, $matrixPointSize, 2);