aepnat / simpuskesmas

config/qrcode/qrtools.php

<?php
/*
 * PHP QR Code encoder
 *
 * Toolset, handy and debug utilites.
 *
 * 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
 */

    class qrtools
    {
        //----------------------------------------------------------------------
        public static function binarize($frame)
        {
            $len = count($frame);
            foreach ($frame as &$frameLine) {
                for ($i = 0; $i < $len; $i++) {
                    $frameLine[$i] = (ord($frameLine[$i]) & 1) ? '1' : '0';
                }
            }

            return $frame;
        }

        //----------------------------------------------------------------------
        public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')

The parameter $tcPdfVersion is not used and could be removed.

        {
            $barcode_array = [];

            if (!is_array($mode)) {
                $mode = explode(',', $mode);
            }

            $eccLevel = 'L';

            if (count($mode) > 1) {
                $eccLevel = $mode[1];
            }

            $qrTab = QRcode::text($code, false, $eccLevel);
            $size = count($qrTab);

            $barcode_array['num_rows'] = $size;
            $barcode_array['num_cols'] = $size;
            $barcode_array['bcode'] = [];

            foreach ($qrTab as $line) {
                $arrAdd = [];
                foreach (str_split($line) as $char) {
                    $arrAdd[] = ($char == '1') ? 1 : 0;
                }
                $barcode_array['bcode'][] = $arrAdd;
            }

            return $barcode_array;
        }

        //----------------------------------------------------------------------
        public static function clearCache()
        {
            self::$frames = [];

The property frames does not exist. Although not strictly required by PHP, it is generally a best practice to declare properties explicitly.

        }

        //----------------------------------------------------------------------
        public static function buildCache()
        {
            self::markTime('before_build_cache');

            $mask = new QRmask();
            for ($a = 1; $a <= QRSPEC_VERSION_MAX; $a++) {
                $frame = QRspec::newFrame($a);
                if (QR_IMAGE) {
                    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
                    QRimage::png(self::binarize($frame), $fileName, 1, 0);

The call to qrimage::png() has too few arguments starting with saveandprint.

                }

                $width = count($frame);
                $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
                for ($maskNo = 0; $maskNo < 8; $maskNo++) {
                    $mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
                }
            }

            self::markTime('after_build_cache');
        }

        //----------------------------------------------------------------------
        public static function log($outfile, $err)
        {
            if (QR_LOG_DIR !== false) {
                if ($err != '') {
                    if ($outfile !== false) {
                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
                    } else {
                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
                    }
                }
            }
        }

        //----------------------------------------------------------------------
        public static function dumpMask($frame)
        {
            $width = count($frame);
            for ($y = 0; $y < $width; $y++) {
                for ($x = 0; $x < $width; $x++) {
                    echo ord($frame[$y][$x]).',';
                }
            }
        }

        //----------------------------------------------------------------------
        public static function markTime($markerId)
        {
            list($usec, $sec) = explode(' ', microtime());
            $time = ((float) $usec + (float) $sec);

            if (!isset($GLOBALS['qr_time_bench'])) {
                $GLOBALS['qr_time_bench'] = [];
            }

            $GLOBALS['qr_time_bench'][$markerId] = $time;
        }

        //----------------------------------------------------------------------
        public static function timeBenchmark()
        {
            self::markTime('finish');

            $lastTime = 0;
            $startTime = 0;
            $p = 0;

            echo '<table cellpadding="3" cellspacing="1">
                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
                    <tbody>';

            foreach ($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
                if ($p > 0) {
                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime - $lastTime, 6).'s</td></tr>';
                } else {
                    $startTime = $thisTime;
                }

                $p++;
                $lastTime = $thisTime;
            }

            echo '</tbody><tfoot>
                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime - $startTime, 6).'s</td></tr>
            </tfoot>
            </table>';
        }

        public static function save($content, $filename_path)
        {
            try {
                $handle = fopen($filename_path, 'w');
                fwrite($handle, $content);

It seems like $handle can also be of type false; however, parameter $handle of fwrite() does only seem to accept resource, maybe add an additional type check?

                fclose($handle);

It seems like $handle can also be of type false; however, parameter $handle of fclose() does only seem to accept resource, maybe add an additional type check?

                return true;
            } catch (Exception $e) {
                echo 'Exception reçue : ', $e->getMessage(), "\n";
            }
        }
    }

    //##########################################################################

    QRtools::markTime('start');