php 将excel导入mysql_PHP教程
这里介绍一个直接将excel文件导入mysql的例子。我花了一晚上的时间测试,无论导入简繁体都不会出现乱码,非常好用。
PHP-ExcelReader,下载地址: http://sourceforge.net/projects/phpexcelreader
说明:
测试环境:MYSQL数据库采用utf8编码.导入EXCEL文档是xls格式,经过测试,xlsx 格式[excel 2007]也OK.
文中红色标注为需要注意的地方,请替换成你配置好的数据,如数据库配置等。运行http://localost/test.php实现导入。
以下是我贴出的详细代码,其中test.php为我写的测试文件,reader.php和oleread.inc文件是从上面提供的网址中下载的。
1. test.php
require_once './includes/reader.php';
// ExcelFile($filename, $encoding);
$data = new Spreadsheet_Excel_Reader();
// Set output Encoding.
$data->setOutputEncoding('gbk');
//”data.xls”是指要导入到mysql中的excel文件
$data->read('date.xls');
@ $db = mysql_connect('localhost', 'root', '1234') or
die("Could not connect to database.");//连接数据库
mysql_query("set names 'gbk'");//输出中文
mysql_select_db('wenhuaedu'); //选择数据库
error_reporting(E_ALL ^ E_NOTICE);
for ($i = 1; $i sheets[0]['numRows']; $i++) {
//以下注释的for循环打印excel表数据
/*
for ($j = 1; $j sheets[0]['numCols']; $j++) {
echo """.$data->sheets[0]['cells'][$i][$j]."",";
}
echo "n";
*/
//以下代码是将excel表数据【3个字段】插入到mysql中,根据你的excel表字段的多少,改写以下代码吧!
$sql = "INSERT INTO test VALUES('".
$data->sheets[0]['cells'][$i][1]."','".
$data->sheets[0]['cells'][$i][2]."','".
$data->sheets[0]['cells'][$i][3]."')";
echo $sql.'
';
$res = mysql_query($sql);
贴出其中包含的文件
OLERead.php
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[$pos+1]) if ($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->sbdStartBlock\n";
$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 $bigBlockDepotBlocks[$i] = GetInt4d($this->data, $pos);
$pos += 4;
}
for ($j = 0; $j numExtensionBlocks; $j++) {
$pos = ($this->extensionBlock + 1) * BIG_BLOCK_SIZE;
$blocksToRead = min($this->numBigBlockDepotBlocks - $bbdBlocks, BIG_BLOCK_SIZE / 4 - 1);
for ($i = $bbdBlocks; $i $bigBlockDepotBlocks[$i] = GetInt4d($this->data, $pos);
$pos += 4;
}
$bbdBlocks += $blocksToRead;
if ($bbdBlocks numBigBlockDepotBlocks) {
$this->extensionBlock = GetInt4d($this->data, $pos);
}
}
// var_dump($bigBlockDepotBlocks);
// readBigBlockDepot
$pos = 0;
$index = 0;
$this->bigBlockChain = array();
for ($i = 0; $i numBigBlockDepotBlocks; $i++) {
$pos = ($bigBlockDepotBlocks[$i] + 1) * BIG_BLOCK_SIZE;
//echo "pos = $pos";
for ($j = 0 ; $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 $this->smallBlockChain[$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 = $pos data=$data\n";
$block = $this->bigBlockChain[$block];
}
return $data;
}
function __readPropertySets(){
$offset = 0;
//var_dump($this->entry);
while ($offset entry)) {
$d = substr($this->entry, $offset, PROPERTY_STORAGE_BLOCK_SIZE);
$nameSize = ord($d[SIZE_OF_NAME_POS]) | (ord($d[SIZE_OF_NAME_POS+1]) $type = ord($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 $name .= $d[$i];
}
$name = str_replace("\x00", "", $name);
$this->props[] = 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'] // 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 = $numBlocks\n";
//byte[] streamData = new byte[numBlocks * BIG_BLOCK_SIZE];
//print_r($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;
}
}
}
?>
还有一个
reader.php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=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 license@php.net so we can mail you a copy immediately.
*
* @category Spreadsheet
* @package Spreadsheet_Excel_Reader
* @author Vadim Tkachenko
* @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';
//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
* @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 Spreadsheet_Excel_Reader
{
/**
* 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 Spreadsheet_Excel_Reader()
{
@$this->_ole =& new OLERead();
@$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; $i if ($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[$pos+1])$length = ord($this->data[$pos+2]) | ord($this->data[$pos+3])$version = ord($this->data[$pos + 4]) | ord($this->data[$pos + 5])$substreamType = ord($this->data[$pos + 6]) | ord($this->data[$pos + 7])//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[$pos+1])$length = ord($this->data[$pos+2]) | ord($this->data[$pos+3])while ($code != SPREADSHEET_EXCEL_READER_TYPE_EOF) {
switch ($code) {
case SPREADSHEET_EXCEL_READER_TYPE_SST:
//echo "Type_SST\n";
$spos = $pos + 4;
$limitpos = $spos + $length;
$uniqueStrings = $this->_GetInt4d($this->data, $spos+4);
$spos += 8;
for ($i = 0; $i // Read in the number of characters
if ($spos == $limitpos) {
$opcode = ord($this->data[$spos]) | ord($this->data[$spos+1])$conlength = ord($this->data[$spos+2]) | ord($this->data[$spos+3])if ($opcode != 0x3c) {
return -1;
}
$spos += 4;
$limitpos = $spos + $conlength;
}
$numChars = ord($this->data[$spos]) | (ord($this->data[$spos+1]) //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]) $spos += 2;
}
if ($extendedString) {
// Read in cchExtRst
$extendedRunLength = $this->_GetInt4d($this->data, $spos);
$spos += 4;
}
$len = ($asciiEncoding)? $numChars : $numChars*2;
if ($spos + $len $retstr = substr($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[$spos+1])$conlength = ord($this->data[$spos+2]) | ord($this->data[$spos+3])if ($opcode != 0x3c) {
return -1;
}
$spos += 4;
$limitpos = $spos + $conlength;
$option = ord($this->data[$spos]);
$spos += 1;
if ($asciiEncoding && ($option == 0)) {
$len = min($charsLeft, $limitpos - $spos); // min($charsLeft, $conlength);
$retstr .= substr($this->data, $spos, $len);
$charsLeft -= $len;
$asciiEncoding = true;
}elseif (!$asciiEncoding && ($option != 0)){
$len = min($charsLeft * 2, $limitpos - $spos); // min($charsLeft, $conlength);
$retstr .= substr($this->data, $spos, $len);
$charsLeft -= $len/2;
$asciiEncoding = false;
}elseif (!$asciiEncoding && ($option == 0)) {
// Bummer - the string starts off as Unicode, but after the
// continuation it is in straightforward ASCII encoding
$len = min($charsLeft, $limitpos - $spos); // min($charsLeft, $conlength);
for ($j = 0; $j $retstr .= $this->data[$spos + $j].chr(0);
}
$charsLeft -= $len;
$asciiEncoding = false;
}else{
$newstr = '';
for ($j = 0; $j $newstr = $retstr[$j].chr(0);
}
$retstr = $newstr;
$len = min($charsLeft * 2, $limitpos - $spos); // min($charsLeft, $conlength);
$retstr .= substr($this->data, $spos, $len);
$charsLeft -= $len/2;
$asciiEncoding = false;
//echo "Izavrat\n";
}
$spos += $len;
}
}
$retstr = ($asciiEncoding) ? $retstr : $this->_encodeUTF16($retstr);
// echo "Str $i = $retstr\n";
if ($richString){
$spos += 4 * $formattingRuns;
}
// For extended strings, skip over the extended string data
if ($extendedString) {
$spos += $extendedRunLength;
}
//if ($retstr == 'Derby'){
// echo "bb\n";
//}
$this->sst[]=$retstr;
}
/*$continueRecords = array();
while ($this->getNextCode() == Type_CONTINUE) {
$continueRecords[] = &$this->nextRecord();
}
//echo " 1 Type_SST\n";
$this->shareStrings = new SSTRecord($r, $continueRecords);
//print_r($this->shareStrings->strings);
*/
// echo 'SST read: '.($time_end-$time_start)."\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_FILEPASS:
return false;
break;
case SPREADSHEET_EXCEL_READER_TYPE_NAME:
//echo "Type_NAME\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_FORMAT:
$indexCode = ord($this->data[$pos+4]) | ord($this->data[$pos+5]) if ($version == SPREADSHEET_EXCEL_READER_BIFF8) {
$numchars = ord($this->data[$pos+6]) | ord($this->data[$pos+7]) if (ord($this->data[$pos+8]) == 0){
$formatString = substr($this->data, $pos+9, $numchars);
} else {
$formatString = substr($this->data, $pos+9, $numchars*2);
}
} else {
$numchars = ord($this->data[$pos+6]);
$formatString = substr($this->data, $pos+7, $numchars*2);
}
$this->formatRecords[$indexCode] = $formatString;
// echo "Type.FORMAT\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_XF:
//global $dateFormats, $numberFormats;
$indexCode = ord($this->data[$pos+6]) | ord($this->data[$pos+7]) //echo "\nType.XF ".count($this->formatRecords['xfrecords'])." $indexCode ";
if (array_key_exists($indexCode, $this->dateFormats)) {
//echo "isdate ".$dateFormats[$indexCode];
$this->formatRecords['xfrecords'][] = array(
'type' => 'date',
'format' => $this->dateFormats[$indexCode]
);
}elseif (array_key_exists($indexCode, $this->numberFormats)) {
//echo "isnumber ".$this->numberFormats[$indexCode];
$this->formatRecords['xfrecords'][] = array(
'type' => 'number',
'format' => $this->numberFormats[$indexCode]
);
}else{
$isdate = FALSE;
if ($indexCode > 0){
if (isset($this->formatRecords[$indexCode]))
$formatstr = $this->formatRecords[$indexCode];
//echo '.other.';
//echo "\ndate-time=$formatstr=\n";
if ($formatstr)
if (preg_match("/[^hmsday\/\-:\s]/i", $formatstr) == 0) { // found day and time format
$isdate = TRUE;
$formatstr = str_replace('mm', 'i', $formatstr);
$formatstr = str_replace('h', 'H', $formatstr);
//echo "\ndate-time $formatstr \n";
}
}
if ($isdate){
$this->formatRecords['xfrecords'][] = array(
'type' => 'date',
'format' => $formatstr,
);
}else{
$this->formatRecords['xfrecords'][] = array(
'type' => 'other',
'format' => '',
'code' => $indexCode
);
}
}
//echo "\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_NINETEENFOUR:
//echo "Type.NINETEENFOUR\n";
$this->nineteenFour = (ord($this->data[$pos+4]) == 1);
break;
case SPREADSHEET_EXCEL_READER_TYPE_BOUNDSHEET:
//echo "Type.BOUNDSHEET\n";
$rec_offset = $this->_GetInt4d($this->data, $pos+4);
$rec_typeFlag = ord($this->data[$pos+8]);
$rec_visibilityFlag = ord($this->data[$pos+9]);
$rec_length = ord($this->data[$pos+10]);
if ($version == SPREADSHEET_EXCEL_READER_BIFF8){
$chartype = ord($this->data[$pos+11]);
if ($chartype == 0){
$rec_name = substr($this->data, $pos+12, $rec_length);
} else {
$rec_name = $this->_encodeUTF16(substr($this->data, $pos+12, $rec_length*2));
}
}elseif ($version == SPREADSHEET_EXCEL_READER_BIFF7){
$rec_name = substr($this->data, $pos+11, $rec_length);
}
$this->boundsheets[] = array('name'=>$rec_name,
'offset'=>$rec_offset);
break;
}
//echo "Code = ".base_convert($r['code'],10,16)."\n";
$pos += $length + 4;
$code = ord($this->data[$pos]) | ord($this->data[$pos+1])$length = ord($this->data[$pos+2]) | ord($this->data[$pos+3])//$r = &$this->nextRecord();
//echo "1 Code = ".base_convert($r['code'],10,16)."\n";
}
foreach ($this->boundsheets as $key=>$val){
$this->sn = $key;
$this->_parsesheet($val['offset']);
}
return true;
}
/**
* Parse a worksheet
*
* @access private
* @param todo
* @todo fix return codes
*/
function _parsesheet($spos)
{
$cont = true;
// read BOF
$code = ord($this->data[$spos]) | ord($this->data[$spos+1])$length = ord($this->data[$spos+2]) | ord($this->data[$spos+3])$version = ord($this->data[$spos + 4]) | ord($this->data[$spos + 5])$substreamType = ord($this->data[$spos + 6]) | ord($this->data[$spos + 7])if (($version != SPREADSHEET_EXCEL_READER_BIFF8) && ($version != SPREADSHEET_EXCEL_READER_BIFF7)) {
return -1;
}
if ($substreamType != SPREADSHEET_EXCEL_READER_WORKSHEET){
return -2;
}
//echo "Start parse code=".base_convert($code,10,16)." version=".base_convert($version,10,16)." substreamType=".base_convert($substreamType,10,16).""."\n";
$spos += $length + 4;
//var_dump($this->formatRecords);
//echo "code $code $length";
while($cont) {
//echo "mem= ".memory_get_usage()."\n";
// $r = &$this->file->nextRecord();
$lowcode = ord($this->data[$spos]);
if ($lowcode == SPREADSHEET_EXCEL_READER_TYPE_EOF) break;
$code = $lowcode | ord($this->data[$spos+1])$length = ord($this->data[$spos+2]) | ord($this->data[$spos+3])$spos += 4;
$this->sheets[$this->sn]['maxrow'] = $this->_rowoffset - 1;
$this->sheets[$this->sn]['maxcol'] = $this->_coloffset - 1;
//echo "Code=".base_convert($code,10,16)." $code\n";
unset($this->rectype);
$this->multiplier = 1; // need for format with %
switch ($code) {
case SPREADSHEET_EXCEL_READER_TYPE_DIMENSION:
//echo 'Type_DIMENSION ';
if (!isset($this->numRows)) {
if (($length == 10) || ($version == SPREADSHEET_EXCEL_READER_BIFF7)){
$this->sheets[$this->sn]['numRows'] = ord($this->data[$spos+2]) | ord($this->data[$spos+3]) $this->sheets[$this->sn]['numCols'] = ord($this->data[$spos+6]) | ord($this->data[$spos+7]) } else {
$this->sheets[$this->sn]['numRows'] = ord($this->data[$spos+4]) | ord($this->data[$spos+5]) $this->sheets[$this->sn]['numCols'] = ord($this->data[$spos+10]) | ord($this->data[$spos+11]) }
}
//echo 'numRows '.$this->numRows.' '.$this->numCols."\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_MERGEDCELLS:
$cellRanges = ord($this->data[$spos]) | ord($this->data[$spos+1])for ($i = 0; $i $fr = ord($this->data[$spos + 8*$i + 2]) | ord($this->data[$spos + 8*$i + 3])$lr = ord($this->data[$spos + 8*$i + 4]) | ord($this->data[$spos + 8*$i + 5])$fc = ord($this->data[$spos + 8*$i + 6]) | ord($this->data[$spos + 8*$i + 7])$lc = ord($this->data[$spos + 8*$i + 8]) | ord($this->data[$spos + 8*$i + 9])//$this->sheets[$this->sn]['mergedCells'][] = array($fr + 1, $fc + 1, $lr + 1, $lc + 1);
if ($lr - $fr > 0) {
$this->sheets[$this->sn]['cellsInfo'][$fr+1][$fc+1]['rowspan'] = $lr - $fr + 1;
}
if ($lc - $fc > 0) {
$this->sheets[$this->sn]['cellsInfo'][$fr+1][$fc+1]['colspan'] = $lc - $fc + 1;
}
}
//echo "Merged Cells $cellRanges $lr $fr $lc $fc\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_RK:
case SPREADSHEET_EXCEL_READER_TYPE_RK2:
//echo 'SPREADSHEET_EXCEL_READER_TYPE_RK'."\n";
$row = ord($this->data[$spos]) | ord($this->data[$spos+1])$column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])$rknum = $this->_GetInt4d($this->data, $spos + 6);
$numValue = $this->_GetIEEE754($rknum);
//echo $numValue." ";
if ($this->isDate($spos)) {
list($string, $raw) = $this->createDate($numValue);
}else{
$raw = $numValue;
if (isset($this->_columnsFormat[$column + 1])){
$this->curformat = $this->_columnsFormat[$column + 1];
}
$string = sprintf($this->curformat, $numValue * $this->multiplier);
//$this->addcell(RKRecord($r));
}
$this->addcell($row, $column, $string, $raw);
//echo "Type_RK $row $column $string $raw {$this->curformat}\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_LABELSST:
$row = ord($this->data[$spos]) | ord($this->data[$spos+1])$column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])$xfindex = ord($this->data[$spos+4]) | ord($this->data[$spos+5])$index = $this->_GetInt4d($this->data, $spos + 6);
//var_dump($this->sst);
$this->addcell($row, $column, $this->sst[$index]);
//echo "LabelSST $row $column $string\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_MULRK:
$row = ord($this->data[$spos]) | ord($this->data[$spos+1])$colFirst = ord($this->data[$spos+2]) | ord($this->data[$spos+3])$colLast = ord($this->data[$spos + $length - 2]) | ord($this->data[$spos + $length - 1])$columns = $colLast - $colFirst + 1;
$tmppos = $spos+4;
for ($i = 0; $i $numValue = $this->_GetIEEE754($this->_GetInt4d($this->data, $tmppos + 2));
if ($this->isDate($tmppos-4)) {
list($string, $raw) = $this->createDate($numValue);
}else{
$raw = $numValue;
if (isset($this->_columnsFormat[$colFirst + $i + 1])){
$this->curformat = $this->_columnsFormat[$colFirst + $i + 1];
}
$string = sprintf($this->curformat, $numValue * $this->multiplier);
}
//$rec['rknumbers'][$i]['xfindex'] = ord($rec['data'][$pos]) | ord($rec['data'][$pos+1]) $tmppos += 6;
$this->addcell($row, $colFirst + $i, $string, $raw);
//echo "MULRK $row ".($colFirst + $i)." $string\n";
}
//MulRKRecord($r);
// Get the individual cell records from the multiple record
//$num = ;
break;
case SPREADSHEET_EXCEL_READER_TYPE_NUMBER:
$row = ord($this->data[$spos]) | ord($this->data[$spos+1])$column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])$tmp = unpack("ddouble", substr($this->data, $spos + 6, 8)); // It machine machine dependent
if ($this->isDate($spos)) {
list($string, $raw) = $this->createDate($tmp['double']);
// $this->addcell(DateRecord($r, 1));
}else{
//$raw = $tmp[''];
if (isset($this->_columnsFormat[$column + 1])){
$this->curformat = $this->_columnsFormat[$column + 1];
}
$raw = $this->createNumber($spos);
$string = sprintf($this->curformat, $raw * $this->multiplier);
// $this->addcell(NumberRecord($r));
}
$this->addcell($row, $column, $string, $raw);
//echo "Number $row $column $string\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_FORMULA:
case SPREADSHEET_EXCEL_READER_TYPE_FORMULA2:
$row = ord($this->data[$spos]) | ord($this->data[$spos+1])$column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])if ((ord($this->data[$spos+6])==0) && (ord($this->data[$spos+12])==255) && (ord($this->data[$spos+13])==255)) {
//String formula. Result follows in a STRING record
//echo "FORMULA $row $column Formula with a string
\n";
} elseif ((ord($this->data[$spos+6])==1) && (ord($this->data[$spos+12])==255) && (ord($this->data[$spos+13])==255)) {
//Boolean formula. Result is in +2; 0=false,1=true
} elseif ((ord($this->data[$spos+6])==2) && (ord($this->data[$spos+12])==255) && (ord($this->data[$spos+13])==255)) {
//Error formula. Error code is in +2;
} elseif ((ord($this->data[$spos+6])==3) && (ord($this->data[$spos+12])==255) && (ord($this->data[$spos+13])==255)) {
//Formula result is a null string.
} else {
// result is a number, so first 14 bytes are just like a _NUMBER record
$tmp = unpack("ddouble", substr($this->data, $spos + 6, 8)); // It machine machine dependent
if ($this->isDate($spos)) {
list($string, $raw) = $this->createDate($tmp['double']);
// $this->addcell(DateRecord($r, 1));
}else{
//$raw = $tmp[''];
if (isset($this->_columnsFormat[$column + 1])){
$this->curformat = $this->_columnsFormat[$column + 1];
}
$raw = $this->createNumber($spos);
$string = sprintf($this->curformat, $raw * $this->multiplier);
// $this->addcell(NumberRecord($r));
}
$this->addcell($row, $column, $string, $raw);
//echo "Number $row $column $string\n";
}
break;
case SPREADSHEET_EXCEL_READER_TYPE_BOOLERR:
$row = ord($this->data[$spos]) | ord($this->data[$spos+1])$column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])$string = ord($this->data[$spos+6]);
$this->addcell($row, $column, $string);
//echo 'Type_BOOLERR '."\n";
break;
case SPREADSHEET_EXCEL_READER_TYPE_ROW:
case SPREADSHEET_EXCEL_READER_TYPE_DBCELL:
case SPREADSHEET_EXCEL_READER_TYPE_MULBLANK:
break;
case SPREADSHEET_EXCEL_READER_TYPE_LABEL:
$row = ord($this->data[$spos]) | ord($this->data[$spos+1])$column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])$this->addcell($row, $column, substr($this->data, $spos + 8, ord($this->data[$spos + 6]) | ord($this->data[$spos + 7])// $this->addcell(LabelRecord($r));
break;
case SPREADSHEET_EXCEL_READER_TYPE_EOF:
$cont = false;
break;
default:
//echo ' unknown :'.base_convert($r['code'],10,16)."\n";
break;
}
$spos += $length;
}
if (!isset($this->sheets[$this->sn]['numRows']))
$this->sheets[$this->sn]['numRows'] = $this->sheets[$this->sn]['maxrow'];
if (!isset($this->sheets[$this->sn]['numCols']))
$this->sheets[$this->sn]['numCols'] = $this->sheets[$this->sn]['maxcol'];
}
/**
* Check whether the current record read is a date
*
* @param todo
* @return boolean True if date, false otherwise
*/
function isDate($spos)
{
//$xfindex = GetInt2d(, 4);
$xfindex = ord($this->data[$spos+4]) | ord($this->data[$spos+5]) //echo 'check is date '.$xfindex.' '.$this->formatRecords['xfrecords'][$xfindex]['type']."\n";
//var_dump($this->formatRecords['xfrecords'][$xfindex]);
if ($this->formatRecords['xfrecords'][$xfindex]['type'] == 'date') {
$this->curformat = $this->formatRecords['xfrecords'][$xfindex]['format'];
$this->rectype = 'date';
return true;
} else {
if ($this->formatRecords['xfrecords'][$xfindex]['type'] == 'number') {
$this->curformat = $this->formatRecords['xfrecords'][$xfindex]['format'];
$this->rectype = 'number';
if (($xfindex == 0x9) || ($xfindex == 0xa)){
$this->multiplier = 100;
}
}else{
$this->curformat = $this->_defaultFormat;
$this->rectype = 'unknown';
}
return false;
}
}
//}}}
//{{{ createDate()
/**
* Convert the raw Excel date into a human readable format
*
* Dates in Excel are stored as number of seconds from an epoch. On
* Windows, the epoch is 30/12/1899 and on Mac it's 01/01/1904
*
* @access private
* @param integer The raw Excel value to convert
* @return array First element is the converted date, the second element is number a unix timestamp
*/
function createDate($numValue)
{
if ($numValue > 1) {
$utcDays = $numValue - ($this->nineteenFour ? SPREADSHEET_EXCEL_READER_UTCOFFSETDAYS1904 : SPREADSHEET_EXCEL_READER_UTCOFFSETDAYS);
$utcValue = round(($utcDays+1) * SPREADSHEET_EXCEL_READER_MSINADAY);
$string = date ($this->curformat, $utcValue);
$raw = $utcValue;
} else {
$raw = $numValue;
$hours = floor($numValue * 24);
$mins = floor($numValue * 24 * 60) - $hours * 60;
$secs = floor($numValue * SPREADSHEET_EXCEL_READER_MSINADAY) - $hours * 60 * 60 - $mins * 60;
$string = date ($this->curformat, mktime($hours, $mins, $secs));
}
return array($string, $raw);
}
function createNumber($spos)
{
$rknumhigh = $this->_GetInt4d($this->data, $spos + 10);
$rknumlow = $this->_GetInt4d($this->data, $spos + 6);
//for ($i=0; $idata[$i+$spos+6]) . " "; } echo "
";
$sign = ($rknumhigh & 0x80000000) >> 31;
$exp = ($rknumhigh & 0x7ff00000) >> 20;
$mantissa = (0x100000 | ($rknumhigh & 0x000fffff));
$mantissalow1 = ($rknumlow & 0x80000000) >> 31;
$mantissalow2 = ($rknumlow & 0x7fffffff);
$value = $mantissa / pow( 2 , (20- ($exp - 1023)));
if ($mantissalow1 != 0) $value += 1 / pow (2 , (21 - ($exp - 1023)));
$value += $mantissalow2 / pow (2 , (52 - ($exp - 1023)));
//echo "Sign = $sign, Exp = $exp, mantissahighx = $mantissa, mantissalow1 = $mantissalow1, mantissalow2 = $mantissalow2
\n";
if ($sign) {$value = -1 * $value;}
return $value;
}
function addcell($row, $col, $string, $raw = '')
{
//echo "ADD cel $row-$col $string\n";
$this->sheets[$this->sn]['maxrow'] = max($this->sheets[$this->sn]['maxrow'], $row + $this->_rowoffset);
$this->sheets[$this->sn]['maxcol'] = max($this->sheets[$this->sn]['maxcol'], $col + $this->_coloffset);
$this->sheets[$this->sn]['cells'][$row + $this->_rowoffset][$col + $this->_coloffset] = $string;
if ($raw)
$this->sheets[$this->sn]['cellsInfo'][$row + $this->_rowoffset][$col + $this->_coloffset]['raw'] = $raw;
if (isset($this->rectype))
$this->sheets[$this->sn]['cellsInfo'][$row + $this->_rowoffset][$col + $this->_coloffset]['type'] = $this->rectype;
}
function _GetIEEE754($rknum)
{
if (($rknum & 0x02) != 0) {
$value = $rknum >> 2;
} else {
//mmp
// first comment out the previously existing 7 lines of code here
// $tmp = unpack("d", pack("VV", 0, ($rknum & 0xfffffffc)));
// //$value = $tmp[''];
// if (array_key_exists(1, $tmp)) {
// $value = $tmp[1];
// } else {
// $value = $tmp[''];
// }
// I got my info on IEEE754 encoding from
// http://research.microsoft.com/~hollasch/cgindex/coding/ieeefloat.html
// The RK format calls for using only the most significant 30 bits of the
// 64 bit floating point value. The other 34 bits are assumed to be 0
// So, we use the upper 30 bits of $rknum as follows
$sign = ($rknum & 0x80000000) >> 31;
$exp = ($rknum & 0x7ff00000) >> 20;
$mantissa = (0x100000 | ($rknum & 0x000ffffc));
$value = $mantissa / pow( 2 , (20- ($exp - 1023)));
if ($sign) {$value = -1 * $value;}
//end of changes by mmp
}
if (($rknum & 0x01) != 0) {
$value /= 100;
}
return $value;
}
function _encodeUTF16($string)
{
$result = $string;
if ($this->_defaultEncoding){
switch ($this->_encoderFunction){
case 'iconv' : $result = iconv('UTF-16LE', $this->_defaultEncoding, $string);
break;
case 'mb_convert_encoding' : $result = mb_convert_encoding($string, $this->_defaultEncoding, 'UTF-16LE' );
break;
}
}
return $result;
}
function _GetInt4d($data, $pos)
{
$value = ord($data[$pos]) | (ord($data[$pos+1]) if ($value>=4294967294)
{
$value=-2;
}
return $value;
}
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* c-hanging-comment-ender-p: nil
* End:
*/
?>

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Sujets chauds

PHP et Python ont chacun leurs propres avantages et choisissent en fonction des exigences du projet. 1.Php convient au développement Web, en particulier pour le développement rapide et la maintenance des sites Web. 2. Python convient à la science des données, à l'apprentissage automatique et à l'intelligence artificielle, avec syntaxe concise et adaptée aux débutants.

PHP est utilisé pour créer des sites Web dynamiques, et ses fonctions principales incluent: 1. Générer du contenu dynamique et générer des pages Web en temps réel en se connectant à la base de données; 2. Traiter l'interaction utilisateur et les soumissions de formulaires, vérifier les entrées et répondre aux opérations; 3. Gérer les sessions et l'authentification des utilisateurs pour offrir une expérience personnalisée; 4. Optimiser les performances et suivre les meilleures pratiques pour améliorer l'efficacité et la sécurité du site Web.

PHP est toujours dynamique et occupe toujours une position importante dans le domaine de la programmation moderne. 1) La simplicité de PHP et le soutien communautaire puissant le rendent largement utilisé dans le développement Web; 2) sa flexibilité et sa stabilité le rendent exceptionnelle dans la gestion des formulaires Web, des opérations de base de données et du traitement de fichiers; 3) PHP évolue et optimise constamment, adapté aux débutants et aux développeurs expérimentés.

Apache se connecte à une base de données nécessite les étapes suivantes: Installez le pilote de base de données. Configurez le fichier web.xml pour créer un pool de connexion. Créez une source de données JDBC et spécifiez les paramètres de connexion. Utilisez l'API JDBC pour accéder à la base de données à partir du code Java, y compris l'obtention de connexions, la création d'instructions, les paramètres de liaison, l'exécution de requêtes ou de mises à jour et de traitement des résultats.

PHP est largement utilisé dans le commerce électronique, les systèmes de gestion de contenu et le développement d'API. 1) E-commerce: Utilisé pour la fonction de panier et le traitement des paiements. 2) Système de gestion du contenu: utilisé pour la génération de contenu dynamique et la gestion des utilisateurs. 3) Développement des API: Utilisé pour le développement de l'API RESTful et la sécurité de l'API. Grâce à l'optimisation des performances et aux meilleures pratiques, l'efficacité et la maintenabilité des applications PHP sont améliorées.

PHP et Python ont leurs propres avantages et inconvénients, et le choix dépend des besoins du projet et des préférences personnelles. 1.Php convient au développement rapide et à la maintenance des applications Web à grande échelle. 2. Python domine le domaine de la science des données et de l'apprentissage automatique.

PHP est principalement la programmation procédurale, mais prend également en charge la programmation orientée objet (POO); Python prend en charge une variété de paradigmes, y compris la POO, la programmation fonctionnelle et procédurale. PHP convient au développement Web, et Python convient à une variété d'applications telles que l'analyse des données et l'apprentissage automatique.

PHP utilise les extensions MySQLI et PDO pour interagir dans les opérations de base de données et le traitement de la logique côté serveur, et traite la logique côté serveur via des fonctions telles que la gestion de session. 1) Utilisez MySQLI ou PDO pour vous connecter à la base de données et exécuter les requêtes SQL. 2) Gérer les demandes HTTP et l'état de l'utilisateur via la gestion de session et d'autres fonctions. 3) Utiliser les transactions pour assurer l'atomicité des opérations de base de données. 4) Empêcher l'injection de SQL, utiliser les connexions de gestion des exceptions et de clôture pour le débogage. 5) Optimiser les performances via l'indexation et le cache, écrivez du code très lisible et effectuez une gestion des erreurs.
