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authorfriendica <info@friendica.com>2014-01-07 20:36:16 -0800
committerfriendica <info@friendica.com>2014-01-07 20:36:16 -0800
commit8b93881ce7ab4e0a8b0c8426da1ddfeed19c2309 (patch)
tree52d4b15d798933c068a8eb12374ac192db8fbb42 /library/phpqrcode/index.php
parent401183780540812929e35a59348b7f2e347d4b8f (diff)
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qr code support
Diffstat (limited to 'library/phpqrcode/index.php')
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diff --git a/library/phpqrcode/index.php b/library/phpqrcode/index.php
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+<?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
+ */
+
+ echo "<h1>PHP QR Code</h1><hr/>";
+
+ //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
+ $PNG_WEB_DIR = 'temp/';
+
+ include "qrlib.php";
+
+ //ofcourse we need rights to create temp dir
+ if (!file_exists($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, $matrixPointSize, 2);
+
+ }
+
+ //display generated file
+ echo '<img src="'.$PNG_WEB_DIR.basename($filename).'" /><hr/>';
+
+ //config form
+ echo '<form action="index.php" method="post">
+ Data:&nbsp;<input name="data" value="'.(isset($_REQUEST['data'])?htmlspecialchars($_REQUEST['data']):'PHP QR Code :)').'" />&nbsp;
+ ECC:&nbsp;<select name="level">
+ <option value="L"'.(($errorCorrectionLevel=='L')?' selected':'').'>L - smallest</option>
+ <option value="M"'.(($errorCorrectionLevel=='M')?' selected':'').'>M</option>
+ <option value="Q"'.(($errorCorrectionLevel=='Q')?' selected':'').'>Q</option>
+ <option value="H"'.(($errorCorrectionLevel=='H')?' selected':'').'>H - best</option>
+ </select>&nbsp;
+ Size:&nbsp;<select name="size">';
+
+ for($i=1;$i<=10;$i++)
+ echo '<option value="'.$i.'"'.(($matrixPointSize==$i)?' selected':'').'>'.$i.'</option>';
+
+ echo '</select>&nbsp;
+ <input type="submit" value="GENERATE"></form><hr/>';
+
+ // benchmark
+ QRtools::timeBenchmark();
+
+ \ No newline at end of file