<?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($filename).'" /><hr/>'; //config form echo '<form action="index.php" method="post"> Data: <input name="data" value="'.(isset($_REQUEST['data'])?htmlspecialchars($_REQUEST['data']):'PHP QR Code :)').'" /> ECC: <select name="level"> <option value="L"'.(($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"'.(($errorCorrectionLevel=='H')?' selected':'').'>H - best</option> </select> Size: <select name="size">'; for($i=1;$i<=10;$i++) echo '<option value="'.$i.'"'.(($matrixPointSize==$i)?' selected':'').'>'.$i.'</option>'; echo '</select> <input type="submit" value="GENERATE"></form><hr/>'; // benchmark QRtools::timeBenchmark();