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当前路径:Classes/PHPExcel/Reader/Excel2003XML.php
<?php

/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {
    /**
     * @ignore
     */
    define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
    require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}

/**
 * PHPExcel_Reader_Excel2003XML
 *
 * Copyright (c) 2006 - 2015 PHPExcel
 *
 * 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 2.1 of the License, or (at your option) 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 Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Reader
 * @copyright  Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version    ##VERSION##, ##DATE##
 */
class PHPExcel_Reader_Excel2003XML extends PHPExcel_Reader_Abstract implements PHPExcel_Reader_IReader
{
    /**
     * Formats
     *
     * @var array
     */
    protected $styles = array();

    /**
     * Character set used in the file
     *
     * @var string
     */
    protected $charSet = 'UTF-8';

    /**
     * Create a new PHPExcel_Reader_Excel2003XML
     */
    public function __construct()
    {
        $this->readFilter = new PHPExcel_Reader_DefaultReadFilter();
    }


    /**
     * Can the current PHPExcel_Reader_IReader read the file?
     *
     * @param     string         $pFilename
     * @return     boolean
     * @throws PHPExcel_Reader_Exception
     */
    public function canRead($pFilename)
    {

        //    Office                    xmlns:o="urn:schemas-microsoft-com:office:office"
        //    Excel                    xmlns:x="urn:schemas-microsoft-com:office:excel"
        //    XML Spreadsheet            xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
        //    Spreadsheet component    xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet"
        //    XML schema                 xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882"
        //    XML data type            xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882"
        //    MS-persist recordset    xmlns:rs="urn:schemas-microsoft-com:rowset"
        //    Rowset                    xmlns:z="#RowsetSchema"
        //

        $signature = array(
                '<?xml version="1.0"',
                '<?mso-application progid="Excel.Sheet"?>'
            );

        // Open file
        $this->openFile($pFilename);
        $fileHandle = $this->fileHandle;
        
        // Read sample data (first 2 KB will do)
        $data = fread($fileHandle, 2048);
        fclose($fileHandle);

        $valid = true;
        foreach ($signature as $match) {
            // every part of the signature must be present
            if (strpos($data, $match) === false) {
                $valid = false;
                break;
            }
        }

        //    Retrieve charset encoding
        if (preg_match('/<?xml.*encoding=[\'"](.*?)[\'"].*?>/um', $data, $matches)) {
            $this->charSet = strtoupper($matches[1]);
        }
//        echo 'Character Set is ', $this->charSet,'<br />';

        return $valid;
    }


    /**
     * Reads names of the worksheets from a file, without parsing the whole file to a PHPExcel object
     *
     * @param     string         $pFilename
     * @throws     PHPExcel_Reader_Exception
     */
    public function listWorksheetNames($pFilename)
    {
        // Check if file exists
        if (!file_exists($pFilename)) {
            throw new PHPExcel_Reader_Exception("Could not open " . $pFilename . " for reading! File does not exist.");
        }
        if (!$this->canRead($pFilename)) {
            throw new PHPExcel_Reader_Exception($pFilename . " is an Invalid Spreadsheet file.");
        }

        $worksheetNames = array();

        $xml = simplexml_load_string($this->securityScan(file_get_contents($pFilename)), 'SimpleXMLElement', PHPExcel_Settings::getLibXmlLoaderOptions());
        $namespaces = $xml->getNamespaces(true);

        $xml_ss = $xml->children($namespaces['ss']);
        foreach ($xml_ss->Worksheet as $worksheet) {
            $worksheet_ss = $worksheet->attributes($namespaces['ss']);
            $worksheetNames[] = self::convertStringEncoding((string) $worksheet_ss['Name'], $this->charSet);
        }

        return $worksheetNames;
    }


    /**
     * Return worksheet info (Name, Last Column Letter, Last Column Index, Total Rows, Total Columns)
     *
     * @param   string     $pFilename
     * @throws   PHPExcel_Reader_Exception
     */
    public function listWorksheetInfo($pFilename)
    {
        // Check if file exists
        if (!file_exists($pFilename)) {
            throw new PHPExcel_Reader_Exception("Could not open " . $pFilename . " for reading! File does not exist.");
        }

        $worksheetInfo = array();

        $xml = simplexml_load_string($this->securityScan(file_get_contents($pFilename)), 'SimpleXMLElement', PHPExcel_Settings::getLibXmlLoaderOptions());
        $namespaces = $xml->getNamespaces(true);

        $worksheetID = 1;
        $xml_ss = $xml->children($namespaces['ss']);
        foreach ($xml_ss->Worksheet as $worksheet) {
            $worksheet_ss = $worksheet->attributes($namespaces['ss']);

            $tmpInfo = array();
            $tmpInfo['worksheetName'] = '';
            $tmpInfo['lastColumnLetter'] = 'A';
            $tmpInfo['lastColumnIndex'] = 0;
            $tmpInfo['totalRows'] = 0;
            $tmpInfo['totalColumns'] = 0;

            if (isset($worksheet_ss['Name'])) {
                $tmpInfo['worksheetName'] = (string) $worksheet_ss['Name'];
            } else {
                $tmpInfo['worksheetName'] = "Worksheet_{$worksheetID}";
            }

            if (isset($worksheet->Table->Row)) {
                $rowIndex = 0;

                foreach ($worksheet->Table->Row as $rowData) {
                    $columnIndex = 0;
                    $rowHasData = false;

                    foreach ($rowData->Cell as $cell) {
                        if (isset($cell->Data)) {
                            $tmpInfo['lastColumnIndex'] = max($tmpInfo['lastColumnIndex'], $columnIndex);
                            $rowHasData = true;
                        }

                        ++$columnIndex;
                    }

                    ++$rowIndex;

                    if ($rowHasData) {
                        $tmpInfo['totalRows'] = max($tmpInfo['totalRows'], $rowIndex);
                    }
                }
            }

            $tmpInfo['lastColumnLetter'] = PHPExcel_Cell::stringFromColumnIndex($tmpInfo['lastColumnIndex']);
            $tmpInfo['totalColumns'] = $tmpInfo['lastColumnIndex'] + 1;

            $worksheetInfo[] = $tmpInfo;
            ++$worksheetID;
        }

        return $worksheetInfo;
    }


    /**
     * Loads PHPExcel from file
     *
     * @param     string         $pFilename
     * @return     PHPExcel
     * @throws     PHPExcel_Reader_Exception
     */
    public function load($pFilename)
    {
        // Create new PHPExcel
        $objPHPExcel = new PHPExcel();
        $objPHPExcel->removeSheetByIndex(0);

        // Load into this instance
        return $this->loadIntoExisting($pFilename, $objPHP...
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