Raphaël G. Git Repositories - cdn/blob - vendor/phpqrcode/index.php

   1 <?php
   2 /*
   3  * PHP QR Code encoder
   4  *
   5  * Exemplatory usage
   6  *
   7  * PHP QR Code is distributed under LGPL 3
   8  * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 3 of the License, or any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  23  */
  24
  25     echo "<h1>PHP QR Code</h1><hr/>";
  26
  27     //set it to writable location, a place for temp generated PNG files
  28     $PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'temp'.DIRECTORY_SEPARATOR;
  29
  30     //html PNG location prefix
  31     $PNG_WEB_DIR = 'temp/';
  32
  33     include "qrlib.php";
  34
  35     //ofcourse we need rights to create temp dir
  36     if (!file_exists($PNG_TEMP_DIR))
  37         mkdir($PNG_TEMP_DIR);
  38
  39
  40     $filename = $PNG_TEMP_DIR.'test.png';
  41
  42     //processing form input
  43     //remember to sanitize user input in real-life solution !!!
  44     $errorCorrectionLevel = 'L';
  45     if (isset($_REQUEST['level']) && in_array($_REQUEST['level'], array('L','M','Q','H')))
  46         $errorCorrectionLevel = $_REQUEST['level'];
  47
  48     $matrixPointSize = 4;
  49     if (isset($_REQUEST['size']))
  50         $matrixPointSize = min(max((int)$_REQUEST['size'], 1), 10);
  51
  52
  53     if (isset($_REQUEST['data'])) {
  54
  55         //it's very important!
  56         if (trim($_REQUEST['data']) == '')
  57             die('data cannot be empty! <a href="?">back</a>');
  58
  59         // user data
  60         $filename = $PNG_TEMP_DIR.'test'.md5($_REQUEST['data'].'|'.$errorCorrectionLevel.'|'.$matrixPointSize).'.png';
  61         QRcode::png($_REQUEST['data'], $filename, $errorCorrectionLevel, $matrixPointSize, 2);
  62
  63     } else {
  64
  65         //default data
  66         echo 'You can provide data in GET parameter: <a href="?data=like_that">like that</a><hr/>';
  67         QRcode::png('PHP QR Code :)', $filename, $errorCorrectionLevel, $matrixPointSize, 2);
  68
  69     }
  70
  71     //display generated file
  72     echo '<img src="'.$PNG_WEB_DIR.basename($filename).'" /><hr/>';
  73
  74     //config form
  75     echo '<form action="index.php" method="post">
  76         Data:&nbsp;<input name="data" value="'.(isset($_REQUEST['data'])?htmlspecialchars($_REQUEST['data']):'PHP QR Code :)').'" />&nbsp;
  77         ECC:&nbsp;<select name="level">
  78             <option value="L"'.(($errorCorrectionLevel=='L')?' selected':'').'>L - smallest</option>
  79             <option value="M"'.(($errorCorrectionLevel=='M')?' selected':'').'>M</option>
  80             <option value="Q"'.(($errorCorrectionLevel=='Q')?' selected':'').'>Q</option>
  81             <option value="H"'.(($errorCorrectionLevel=='H')?' selected':'').'>H - best</option>
  82         </select>&nbsp;
  83         Size:&nbsp;<select name="size">';
  84
  85     for($i=1;$i<=10;$i++)
  86         echo '<option value="'.$i.'"'.(($matrixPointSize==$i)?' selected':'').'>'.$i.'</option>';
  87
  88     echo '</select>&nbsp;
  89         <input type="submit" value="GENERATE"></form><hr/>';
  90
  91     // benchmark
  92     QRtools::timeBenchmark();
  93
  94