94 lines
3.6 KiB
PHP
94 lines
3.6 KiB
PHP
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<?php
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/*
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* PHP QR Code encoder
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*
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* Exemplatory usage
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*
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* PHP QR Code is distributed under LGPL 3
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* Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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echo "<h1>PHP QR Code</h1><hr/>";
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//set it to writable location, a place for temp generated PNG files
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$PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'temp'.DIRECTORY_SEPARATOR;
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//html PNG location prefix
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$PNG_WEB_DIR = 'temp/';
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include "qrlib.php";
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//ofcourse we need rights to create temp dir
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if (!file_exists($PNG_TEMP_DIR))
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mkdir($PNG_TEMP_DIR);
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$filename = $PNG_TEMP_DIR.'test.png';
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//processing form input
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//remember to sanitize user input in real-life solution !!!
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$errorCorrectionLevel = 'L';
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if (isset($_REQUEST['level']) && in_array($_REQUEST['level'], array('L','M','Q','H')))
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$errorCorrectionLevel = $_REQUEST['level'];
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$matrixPointSize = 4;
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if (isset($_REQUEST['size']))
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$matrixPointSize = min(max((int)$_REQUEST['size'], 1), 10);
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if (isset($_REQUEST['data'])) {
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//it's very important!
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if (trim($_REQUEST['data']) == '')
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die('data cannot be empty! <a href="?">back</a>');
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// user data
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$filename = $PNG_TEMP_DIR.'test'.md5($_REQUEST['data'].'|'.$errorCorrectionLevel.'|'.$matrixPointSize).'.png';
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QRcode::png($_REQUEST['data'], $filename, $errorCorrectionLevel, $matrixPointSize, 2);
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} else {
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//default data
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echo 'You can provide data in GET parameter: <a href="?data=like_that">like that</a><hr/>';
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QRcode::png('PHP QR Code :)', $filename, $errorCorrectionLevel, $matrixPointSize, 2);
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}
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//display generated file
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echo '<img src="'.$PNG_WEB_DIR.basename($filename).'" /><hr/>';
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//config form
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echo '<form action="index.php" method="post">
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Data: <input name="data" value="'.(isset($_REQUEST['data'])?htmlspecialchars($_REQUEST['data']):'PHP QR Code :)').'" />
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ECC: <select name="level">
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<option value="L"'.(($errorCorrectionLevel=='L')?' selected':'').'>L - smallest</option>
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<option value="M"'.(($errorCorrectionLevel=='M')?' selected':'').'>M</option>
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<option value="Q"'.(($errorCorrectionLevel=='Q')?' selected':'').'>Q</option>
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<option value="H"'.(($errorCorrectionLevel=='H')?' selected':'').'>H - best</option>
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</select>
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Size: <select name="size">';
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for($i=1;$i<=10;$i++)
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echo '<option value="'.$i.'"'.(($matrixPointSize==$i)?' selected':'').'>'.$i.'</option>';
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echo '</select>
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<input type="submit" value="GENERATE"></form><hr/>';
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// benchmark
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QRtools::timeBenchmark();
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