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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();
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