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File: phpqrcode/index.php

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  Classes of Karl Holz  >  Gig Cable Label  >  phpqrcode/index.php  >  Download  
File: phpqrcode/index.php
Role: Example script
Content type: text/plain
Description: phpqrcode files needed by class for QR codes
Class: Gig Cable Label
Generate label images in resistors code colours
Author: By
Last change:
Date: 2 years ago
Size: 3,657 bytes
 

Contents

Class file image Download
<?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();