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phpexcel读取excel文档代码
时间：2022-06-24 19:01:51 编辑：袖梨 来源：一聚教程网
最近刚刚做了个导入excle文件，群发短信的功能，在这里总结下用php教程获取excle文件数据的方法，
1、readexcel.system.php
/* vim: set expandtab tabstop=4 shiftsofttabstop=4: */
/**
* A class for reading Microsoft Excel Spreadsheets.
*
* Originally developed by Vadim Tkachenko under the name PHPExcelReader.
* (http://sourceforge.net/projects/phpexcelreader)
* Based on the Java version by Andy Khan (http://www.andykhan.com). Now
* maintained by David Sanders. Reads only Biff 7 and Biff 8 formats.
*
* PHP versions 4 and 5
*
* LICENSE: This source file is subject to version 3.0 of the PHP license
* that is available through the world-wide-web at the following URI:
* http://www.php.net/license/3_0.txt. If you did not receive a copy of
* the PHP License and are unable to obtain it through the web, please
* send a note to [email protected] so we can mail you a copy immediately.
*
* @category Spreadsheet
* @package Spreadsheet_Excel_Reader
* @author Vadim Tkachenko <[email protected]>
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version CVS: $Id: reader.php 19 2007-03-13 12:42:41Z shangxiao $
* @link http://pear.php.net/package/Spreadsheet_Excel_Reader
* @see OLE, Spreadsheet_Excel_Writer
*/
//require_once 'PEAR.php';
//require_once 'oleread.php';
//oleread.php的内容start=======================================================================================================
define('NUM_BIG_BLOCK_DEPOT_BLOCKS_POS', 0x2c);
define('SMALL_BLOCK_DEPOT_BLOCK_POS', 0x3c);
define('ROOT_START_BLOCK_POS', 0x30);
define('BIG_BLOCK_SIZE', 0x200);
define('SMALL_BLOCK_SIZE', 0x40);
define('EXTENSION_BLOCK_POS', 0x44);
define('NUM_EXTENSION_BLOCK_POS', 0x48);
define('PROPERTY_STORAGE_BLOCK_SIZE', 0x80);
define('BIG_BLOCK_DEPOT_BLOCKS_POS', 0x4c);
define('SMALL_BLOCK_THRESHOLD', 0x1000);
// property storage offsets
define('SIZE_OF_NAME_POS', 0x40);
define('TYPE_POS', 0x42);
define('START_BLOCK_POS', 0x74);
define('SIZE_POS', 0x78);
define('IDENTIFIER_OLE', pack("CCCCCCCC",0xd0,0xcf,0x11,0xe0,0xa1,0xb1,0x1a,0xe1));
//echo 'ROOT_START_BLOCK_POS = '.ROOT_START_BLOCK_POS."n";
//echo bin2hex($data[ROOT_START_BLOCK_POS])."n";
//echo "a=";
//echo $data[ROOT_START_BLOCK_POS];
//function log
function GetInt4d($data, $pos)
{
$value = ord($data[$pos]) | (ord($data[$pos+1]) << 8) | (ord($data[$pos+2]) << 16) | (ord($data[$pos+3]) << 24);
if ($value>=4294967294)
{
$value=-2;
}
return $value;
}
class OLERead {
var $data = '';
function OLERead(){
}
function read($sFileName){
// check if file exist and is readable (Darko Miljanovic)
if(!is_readable($sFileName)) {
$this->error = 1;
return false;
}
$this->data = @file_get_contents($sFileName);
if (!$this->data) {
$this->error = 1;
return false;
}
//echo IDENTIFIER_OLE;
//echo 'start';
if (substr($this->data, 0, 8) != IDENTIFIER_OLE) {
$this->error = 1;
return false;
}
$this->numBigBlockDepotBlocks = GetInt4d($this->data, NUM_BIG_BLOCK_DEPOT_BLOCKS_POS);
$this->sbdStartBlock = GetInt4d($this->data, SMALL_BLOCK_DEPOT_BLOCK_POS);
$this->rootStartBlock = GetInt4d($this->data, ROOT_START_BLOCK_POS);
$this->extensionBlock = GetInt4d($this->data, EXTENSION_BLOCK_POS);
$this->numExtensionBlocks = GetInt4d($this->data, NUM_EXTENSION_BLOCK_POS);
/*
echo $this->numBigBlockDepotBlocks." ";
echo $this->sbdStartBlock." ";
echo $this->rootStartBlock." ";
echo $this->extensionBlock." ";
echo $this->numExtensionBlocks." ";
*/
//echo "sbdStartBlock = $this->sbdStartBlockn";
$bigBlockDepotBlocks = array();
$pos = BIG_BLOCK_DEPOT_BLOCKS_POS;
// echo "pos = $pos";
$bbdBlocks = $this->numBigBlockDepotBlocks;
if ($this->numExtensionBlocks != 0) {
$bbdBlocks = (BIG_BLOCK_SIZE - BIG_BLOCK_DEPOT_BLOCKS_POS)/4;
}
for ($i = 0; $i < $bbdBlocks; $i++) {
$bigBlockDepotBlocks[$i] = GetInt4d($this->data, $pos);
$pos += 4;
}
for ($j = 0; $j < $this->numExtensionBlocks; $j++) {
$pos = ($this->extensionBlock + 1) * BIG_BLOCK_SIZE;
$blocksToRead = min($this->numBigBlockDepotBlocks - $bbdBlocks, BIG_BLOCK_SIZE / 4 - 1);
for ($i = $bbdBlocks; $i < $bbdBlocks + $blocksToRead; $i++) {
$bigBlockDepotBlocks[$i] = GetInt4d($this->data, $pos);
$pos += 4;
}
$bbdBlocks += $blocksToRead;
if ($bbdBlocks < $this->numBigBlockDepotBlocks) {
$this->extensionBlock = GetInt4d($this->data, $pos);
}
}
// var_dump($bigBlockDepotBlocks);
// readBigBlockDepot
$pos = 0;
$index = 0;
$this->bigBlockChain = array();
for ($i = 0; $i < $this->numBigBlockDepotBlocks; $i++) {
$pos = ($bigBlockDepotBlocks[$i] + 1) * BIG_BLOCK_SIZE;
//echo "pos = $pos";
for ($j = 0 ; $j < BIG_BLOCK_SIZE / 4; $j++) {
$this->bigBlockChain[$index] = GetInt4d($this->data, $pos);
$pos += 4 ;
$index++;
}
}
//var_dump($this->bigBlockChain);
//echo '=====2';
// readSmallBlockDepot();
$pos = 0;
$index = 0;
$sbdBlock = $this->sbdStartBlock;
$this->smallBlockChain = array();
while ($sbdBlock != -2) {
$pos = ($sbdBlock + 1) * BIG_BLOCK_SIZE;
for ($j = 0; $j < BIG_BLOCK_SIZE / 4; $j++) {
$this->smallBlockChain[$index] = GetInt4d($this->data, $pos);
$pos += 4;
$index++;
}
$sbdBlock = $this->bigBlockChain[$sbdBlock];
}
// readData(rootStartBlock)
$block = $this->rootStartBlock;
$pos = 0;
$this->entry = $this->__readData($block);
/*
while ($block != -2) {
$pos = ($block + 1) * BIG_BLOCK_SIZE;
$this->entry = $this->entry.substr($this->data, $pos, BIG_BLOCK_SIZE);
$block = $this->bigBlockChain[$block];
}
*/
//echo '==='.$this->entry."===";
$this->__readPropertySets();
}
function __readData($bl) {
$block = $bl;
$pos = 0;
$data = '';
while ($block != -2) {
$pos = ($block + 1) * BIG_BLOCK_SIZE;
$data = $data.substr($this->data, $pos, BIG_BLOCK_SIZE);
//echo "pos = $pos data=$datan";
$block = $this->bigBlockChain[$block];
}
return $data;
}
function __readPropertySets(){
$offset = 0;
//var_dump($this->entry);
while ($offset < strlen($this->entry)) {
$d = substr($this->entry, $offset, PROPERTY_STORAGE_BLOCK_SIZE);
$nameSize = ord($d[SIZE_OF_NAME_POS]) | (ord($d[SIZE_OF_NAME_POS+1]) << 8);
$type = ord($d[TYPE_POS]);
//$maxBlock = strlen($d) / BIG_BLOCK_SIZE - 1;
$startBlock = GetInt4d($d, START_BLOCK_POS);
$size = GetInt4d($d, SIZE_POS);
$name = '';
for ($i = 0; $i < $nameSize ; $i++) {
$name .= $d[$i];
}
$name = str_replace("x00", "", $name);
$this->props教程[] = array (
'name' => $name,
'type' => $type,
'startBlock' => $startBlock,
'size' => $size);
if (($name == "Workbook") || ($name == "Book")) {
$this->wrkbook = count($this->props) - 1;
}
if ($name == "Root Entry") {
$this->rootentry = count($this->props) - 1;
}
//echo "name ==$name=n";
$offset += PROPERTY_STORAGE_BLOCK_SIZE;
}
}
function getWorkBook(){
if ($this->props[$this->wrkbook]['size'] < SMALL_BLOCK_THRESHOLD){
// getSmallBlockStream(PropertyStorage ps)
$rootdata = $this->__readData($this->props[$this->rootentry]['startBlock']);
$streamData = '';
$block = $this->props[$this->wrkbook]['startBlock'];
//$count = 0;
$pos = 0;
while ($block != -2) {
$pos = $block * SMALL_BLOCK_SIZE;
$streamData .= substr($rootdata, $pos, SMALL_BLOCK_SIZE);
$block = $this->smallBlockChain[$block];
}
return $streamData;
}else{
$numBlocks = $this->props[$this->wrkbook]['size'] / BIG_BLOCK_SIZE;
if ($this->props[$this->wrkbook]['size'] % BIG_BLOCK_SIZE != 0) {
$numBlocks++;
}
if ($numBlocks == 0) return '';
//echo "numBlocks = $numBlocksn";
//byte[] streamData = new byte[numBlocks * BIG_BLOCK_SIZE];
//print_r($this->wrkbook);
$streamData = '';
$block = $this->props[$this->wrkbook]['startBlock'];
//$count = 0;
$pos = 0;
//echo "block = $block";
while ($block != -2) {
$pos = ($block + 1) * BIG_BLOCK_SIZE;
$streamData .= substr($this->data, $pos, BIG_BLOCK_SIZE);
$block = $this->bigBlockChain[$block];
}
//echo 'stream'.$streamData;
return $streamData;
}
}
}
//oleread.php的内容end=======================================================================================================
//require_once 'OLE.php';
define('SPREADSHEET_EXCEL_READER_BIFF8', 0x600);
define('SPREADSHEET_EXCEL_READER_BIFF7', 0x500);
define('SPREADSHEET_EXCEL_READER_WORKBOOKGLOBALS', 0x5);
define('SPREADSHEET_EXCEL_READER_WORKSHEET', 0x10);
define('SPREADSHEET_EXCEL_READER_TYPE_BOF', 0x809);
define('SPREADSHEET_EXCEL_READER_TYPE_EOF', 0x0a);
define('SPREADSHEET_EXCEL_READER_TYPE_BOUNDSHEET', 0x85);
define('SPREADSHEET_EXCEL_READER_TYPE_DIMENSION', 0x200);
define('SPREADSHEET_EXCEL_READER_TYPE_ROW', 0x208);
define('SPREADSHEET_EXCEL_READER_TYPE_DBCELL', 0xd7);
define('SPREADSHEET_EXCEL_READER_TYPE_FILEPASS', 0x2f);
define('SPREADSHEET_EXCEL_READER_TYPE_NOTE', 0x1c);
define('SPREADSHEET_EXCEL_READER_TYPE_TXO', 0x1b6);
define('SPREADSHEET_EXCEL_READER_TYPE_RK', 0x7e);
define('SPREADSHEET_EXCEL_READER_TYPE_RK2', 0x27e);
define('SPREADSHEET_EXCEL_READER_TYPE_MULRK', 0xbd);
define('SPREADSHEET_EXCEL_READER_TYPE_MULBLANK', 0xbe);
define('SPREADSHEET_EXCEL_READER_TYPE_INDEX', 0x20b);
define('SPREADSHEET_EXCEL_READER_TYPE_SST', 0xfc);
define('SPREADSHEET_EXCEL_READER_TYPE_EXTSST', 0xff);
define('SPREADSHEET_EXCEL_READER_TYPE_CONTINUE', 0x3c);
define('SPREADSHEET_EXCEL_READER_TYPE_LABEL', 0x204);
define('SPREADSHEET_EXCEL_READER_TYPE_LABELSST', 0xfd);
define('SPREADSHEET_EXCEL_READER_TYPE_NUMBER', 0x203);
define('SPREADSHEET_EXCEL_READER_TYPE_NAME', 0x18);
define('SPREADSHEET_EXCEL_READER_TYPE_ARRAY', 0x221);
define('SPREADSHEET_EXCEL_READER_TYPE_STRING', 0x207);
define('SPREADSHEET_EXCEL_READER_TYPE_FORMULA', 0x406);
define('SPREADSHEET_EXCEL_READER_TYPE_FORMULA2', 0x6);
define('SPREADSHEET_EXCEL_READER_TYPE_FORMAT', 0x41e);
define('SPREADSHEET_EXCEL_READER_TYPE_XF', 0xe0);
define('SPREADSHEET_EXCEL_READER_TYPE_BOOLERR', 0x205);
define('SPREADSHEET_EXCEL_READER_TYPE_UNKNOWN', 0xffff);
define('SPREADSHEET_EXCEL_READER_TYPE_NINETEENFOUR', 0x22);
define('SPREADSHEET_EXCEL_READER_TYPE_MERGEDCELLS', 0xE5);
define('SPREADSHEET_EXCEL_READER_UTCOFFSETDAYS' , 25569);
define('SPREADSHEET_EXCEL_READER_UTCOFFSETDAYS1904', 24107);
define('SPREADSHEET_EXCEL_READER_MSINADAY', 86400);
//define('SPREADSHEET_EXCEL_READER_MSINADAY', 24 * 60 * 60);
//define('SPREADSHEET_EXCEL_READER_DEF_NUM_FORMAT', "%.2f");
define('SPREADSHEET_EXCEL_READER_DEF_NUM_FORMAT', "%s");
/*
* Place includes, constant defines and $_GLOBAL settings here.
* Make sure they have appropriate docblocks to avoid phpDocumentor
* construing they are documented by the page-level docblock.
*/
/**
* A class for reading Microsoft Excel Spreadsheets.
*
* Originally developed by Vadim Tkachenko under the name PHPExcelReader.
* (http://sourceforge.net/projects/phpexcelreader)
* Based on the Java version by Andy Khan (http://www.andykhan.com). Now
* maintained by David Sanders. Reads only Biff 7 and Biff 8 formats.
*
* @category Spreadsheet
* @package Spreadsheet_Excel_Reader
* @author Vadim Tkachenko <[email protected]>
* @copyright 1997-2005 The PHP Group
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version Release: @package_version@
* @link http://pear.php.net/package/PackageName
* @see OLE, Spreadsheet_Excel_Writer
*/
class ReadexcelSystem{
/**
* Array of worksheets found
*
* @var array
* @access public
*/
var $boundsheets = array();
/**
* Array of format records found
*
* @var array
* @access public
*/
var $formatRecords = array();
/**
* todo
*
* @var array
* @access public
*/
var $sst = array();
/**
* Array of worksheets
*
* The data is stored in 'cells' and the meta-data is stored in an array
* called 'cellsInfo'
*
* Example:
*
* $sheets --> 'cells' --> row --> column --> Interpreted value
* --> 'cellsInfo' --> row --> column --> 'type' - Can be 'date', 'number', or 'unknown'
* --> 'raw' - The raw data that Excel stores for that data cell
*
* @var array
* @access public
*/
var $sheets = array();
/**
* The data returned by OLE
*
* @var string
* @access public
*/
var $data;
/**
* OLE object for reading the file
*
* @var OLE object
* @access private
*/
var $_ole;
/**
* Default encoding
*
* @var string
* @access private
*/
var $_defaultEncoding;
/**
* Default number format
*
* @var integer
* @access private
*/
var $_defaultFormat = SPREADSHEET_EXCEL_READER_DEF_NUM_FORMAT;
/**
* todo
* List of formats to use for each column
*
* @var array
* @access private
*/
var $_columnsFormat = array();
/**
* todo
*
* @var integer
* @access private
*/
var $_rowoffset = 1;
/**
* todo
*
* @var integer
* @access private
*/
var $_coloffset = 1;
/**
* List of default date formats used by Excel
*
* @var array
* @access public
*/
var $dateFormats = array (
0xe => "d/m/Y",
0xf => "d-M-Y",
0x10 => "d-M",
0x11 => "M-Y",
0x12 => "h:i a",
0x13 => "h:i:s a",
0x14 => "H:i",
0x15 => "H:i:s",
0x16 => "d/m/Y H:i",
0x2d => "i:s",
0x2e => "H:i:s",
0x2f => "i:s.S");
/**
* Default number formats used by Excel
*
* @var array
* @access public
*/
var $numberFormats = array(
0x1 => "%1.0f", // "0"
0x2 => "%1.2f", // "0.00",
0x3 => "%1.0f", //"#,##0",
0x4 => "%1.2f", //"#,##0.00",
0x5 => "%1.0f", /*"$#,##0;($#,##0)",*/
0x6 => '$%1.0f', /*"$#,##0;($#,##0)",*/
0x7 => '$%1.2f', //"$#,##0.00;($#,##0.00)",
0x8 => '$%1.2f', //"$#,##0.00;($#,##0.00)",
0x9 => '%1.0f%%', // "0%"
0xa => '%1.2f%%', // "0.00%"
0xb => '%1.2f', // 0.00E00",
0x25 => '%1.0f', // "#,##0;(#,##0)",
0x26 => '%1.0f', //"#,##0;(#,##0)",
0x27 => '%1.2f', //"#,##0.00;(#,##0.00)",
0x28 => '%1.2f', //"#,##0.00;(#,##0.00)",
0x29 => '%1.0f', //"#,##0;(#,##0)",
0x2a => '$%1.0f', //"$#,##0;($#,##0)",
0x2b => '%1.2f', //"#,##0.00;(#,##0.00)",
0x2c => '$%1.2f', //"$#,##0.00;($#,##0.00)",
0x30 => '%1.0f'); //"##0.0E0";
// }}}
// {{{ Spreadsheet_Excel_Reader()
/**
* Constructor
*
* Some basic initialisation
*/
function __construct()
{
$this->_ole =& new OLERead();
$this->setUTFEncoder('iconv');
}
// }}}
// {{{ setOutputEncoding()
/**
* Set the encoding method
*
* @param string Encoding to use
* @access public
*/
function setOutputEncoding($encoding)
{
$this->_defaultEncoding = $encoding;
}
// }}}
// {{{ setUTFEncoder()
/**
* $encoder = 'iconv' or 'mb'
* set iconv if you would like use 'iconv' for encode UTF-16LE to your encoding
* set mb if you would like use 'mb_convert_encoding' for encode UTF-16LE to your encoding
*
* @access public
* @param string Encoding type to use. Either 'iconv' or 'mb'
*/
function setUTFEncoder($encoder = 'iconv')
{
$this->_encoderFunction = '';
if ($encoder == 'iconv') {
$this->_encoderFunction = function_exists('iconv') ? 'iconv' : '';
} elseif ($encoder == 'mb') {
$this->_encoderFunction = function_exists('mb_convert_encoding') ?
'mb_convert_encoding' :
'';
}
}
// }}}
// {{{ setRowColOffset()
/**
* todo
*
* @access public
* @param offset
*/
function setRowColOffset($iOffset)
{
$this->_rowoffset = $iOffset;
$this->_coloffset = $iOffset;
}
// }}}
// {{{ setDefaultFormat()
/**
* Set the default number format
*
* @access public
* @param Default format
*/
function setDefaultFormat($sFormat)
{
$this->_defaultFormat = $sFormat;
}
// }}}
// {{{ setColumnFormat()
/**
* Force a column to use a certain format
*
* @access public
* @param integer Column number
* @param string Format
*/
function setColumnFormat($column, $sFormat)
{
$this->_columnsFormat[$column] = $sFormat;
}
// }}}
// {{{ read()
/**
* Read the spreadsheet file using OLE, then parse
*
* @access public
* @param filename
* @todo return a valid value
*/
function read($sFileName)
{
/*
require_once 'OLE.php';
$ole = new OLE();
$ole->read($sFileName);
foreach ($ole->_list as $i => $pps) {
if (($pps->Name == 'Workbook' || $pps->Name == 'Book') &&
$pps->Size >= SMALL_BLOCK_THRESHOLD) {
$this->data = $ole->getData($i, 0, $ole->getDataLength($i));
} elseif ($pps->Name == 'Root Entry') {
$this->data = $ole->getData($i, 0, $ole->getDataLength($i));
}
//var_dump(strlen($ole->getData($i, 0, $ole->getDataLength($i))), $pps->Name, md5($this->data), $ole->getDataLength($i));
}
//exit;
$this->_parse();
return sizeof($this->sheets) > 0;
*/
$res = $this->_ole->read($sFileName);
// oops, something goes wrong (Darko Miljanovic)
if($res === false) {
// check error code
if($this->_ole->error == 1) {
// bad file
die('The filename ' . $sFileName . ' is not readable');
}
// check other error codes here (eg bad fileformat, etc...)
}
$this->data = $this->_ole->getWorkBook();
/*
$res = $this->_ole->read($sFileName);
if ($this->isError($res)) {
// var_dump($res);
return $this->raiseError($res);
}
$total = $this->_ole->ppsTotal();
for ($i = 0; $i < $total; $i++) {
if ($this->_ole->isFile($i)) {
$type = unpack("v", $this->_ole->getData($i, 0, 2));
if ($type[''] == 0x0809) { // check if it's a BIFF stream
$this->_index = $i;
$this->data = $this->_ole->getData($i, 0, $this->_ole->getDataLength($i));
break;
}
}
}
if ($this->_index === null) {
return $this->raiseError("$file doesn't seem to be an Excel file");
}
*/
//echo "data =".$this->data;
//$this->readRecords();
$this->_parse();
}
// }}}
// {{{ _parse()
/**
* Parse a workbook
*
* @access private
* @return bool
*/
function _parse()
{
$pos = 0;
$code = ord($this->data[$pos]) | ord($this->data[$pos+1])<<8;
$length = ord($this->data[$pos+2]) | ord($this->data[$pos+3])<<8;
$version = ord($this->data[$pos + 4]) | ord($this->data[$pos + 5])<<8;
$substreamType = ord($this->data[$pos + 6]) | ord($this->data[$pos + 7])<<8;
//echo "Start parse code=".base_convert($code,10,16)." version=".base_convert($version,10,16)." substreamType=".base_convert($substreamType,10,16).""."n";
if (($version != SPREADSHEET_EXCEL_READER_BIFF8) &&
($version != SPREADSHEET_EXCEL_READER_BIFF7)) {
return false;
}
if ($substreamType != SPREADSHEET_EXCEL_READER_WORKBOOKGLOBALS){
return false;
}
//print_r($rec);
$pos += $length + 4;
$code = ord($this->data[$pos]) | ord($this->data[$pos+1])<<8;
$length = ord($this->data[$pos+2]) | ord($this->data[$pos+3])<<8;
while ($code != SPREADSHEET_EXCEL_READER_TYPE_EOF) {
switch ($code) {
case SPREADSHEET_EXCEL_READER_TYPE_SST:
//echo "Type_SSTn";
$spos = $pos + 4;
$limitpos = $spos + $length;
$uniqueStrings = $this->_GetInt4d($this->data, $spos+4);
$spos += 8;
for ($i = 0; $i < $uniqueStrings; $i++) {
// Read in the number of characters
if ($spos == $limitpos) {
$opcode = ord($this->data[$spos]) | ord($this->data[$spos+1])<<8;
$conlength = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8;
if ($opcode != 0x3c) {
return -1;
}
$spos += 4;
$limitpos = $spos + $conlength;
}
$numChars = ord($this->data[$spos]) | (ord($this->data[$spos+1]) << 8);
//echo "i = $i pos = $pos numChars = $numChars ";
$spos += 2;
$optionFlags = ord($this->data[$spos]);
$spos++;
$asciiEncoding = (($optionFlags & 0x01) == 0) ;
$extendedString = ( ($optionFlags & 0x04) != 0);
// See if string contains formatting information
$richString = ( ($optionFlags & 0x08) != 0);
if ($richString) {
// Read in the crun
$formattingRuns = ord($this->data[$spos]) | (ord($this->data[$spos+1]) << 8);
$spos += 2;
}
if ($extendedString) {
// Read in cchExtRst
$extendedRunLength = $this->_GetInt4d($this->data, $spos);
$spos += 4;
}
$len = ($asciiEncoding)? $numChars : $numChars*2;
if ($spos + $len < $limitpos) {
$retstr = substr($this->data, $spos, $len);
$spos += $len;
}else{
// found countinue
$retstr = substr($this->data, $spos, $limitpos - $spos);
$bytesRead = $limitpos - $spos;
$charsLeft = $numChars - (($asciiEncoding) ? $bytesRead : ($bytesRead / 2));
$spos = $limitpos;
while ($charsLeft > 0){
$opcode = ord($this->data[$spos]) | ord($this->data[$spos+1])<<8;
$conlength = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8;
if ($opcode != 0x3c) {
&
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