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php编程实现获取excel文档内容的代码实例

2016-03-07 10:30:19

分类:网页技巧

1、readexcel.system.php 复制代码 代码如下: <?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.3ppt.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[] = 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.3ppt.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 2010-2011 The PHP Group * @license http://www.php.net/license/3_0.txt PHP License 3.0 * @version Release: @[email protected] * @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) { 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 < $len; $j++) { $retstr .= $this->data[$spos + $j].chr(0); } $charsLeft -= $len; $asciiEncoding = false; }else{ $newstr = ''; for ($j = 0; $j < strlen($retstr); $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 "Izavratn"; } $spos += $len; } } $retstr = ($asciiEncoding) ? $retstr : $this->_encodeUTF16($retstr); // echo "Str $i = $retstrn"; if ($richString){ $spos += 4 * $formattingRuns; } // For extended strings, skip over the extended string data if ($extendedString) { $spos += $extendedRunLength; } //if ($retstr == 'Derby'){ // echo "bbn"; //} $this->sst[]=$retstr; } /*$continueRecords = array(); while ($this->getNextCode() == Type_CONTINUE) { $continueRecords[] = &$this->nextRecord(); } //echo " 1 Type_SSTn"; $this->shareStrings = new SSTRecord($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_NAMEn"; break; case SPREADSHEET_EXCEL_READER_TYPE_FORMAT: $indexCode = ord($this->data[$pos+4]) | ord($this->data[$pos+5]) << 8; if ($version == SPREADSHEET_EXCEL_READER_BIFF8) { $numchars = ord($this->data[$pos+6]) | ord($this->data[$pos+7]) << 8; if (ord($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.FORMATn"; break; case SPREADSHEET_EXCEL_READER_TYPE_XF: //global $dateFormats, $numberFormats; $indexCode = ord($this->data[$pos+6]) | ord($this->data[$pos+7]) << 8; //echo "nType.XF ".count($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.NINETEENFOURn"; $this->nineteenFour = (ord($this->data[$pos+4]) == 1); break; case SPREADSHEET_EXCEL_READER_TYPE_BOUNDSHEET: //echo "Type.BOUNDSHEETn"; $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])<<8; $length = ord($this->data[$pos+2]) | ord($this->data[$pos+3])<<8; //$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])<<8; $length = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; $version = ord($this->data[$spos + 4]) | ord($this->data[$spos + 5])<<8; $substreamType = ord($this->data[$spos + 6]) | ord($this->data[$spos + 7])<<8; if (($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])<<8; $length = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; $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)." $coden"; unset($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]) << 8; $this->sheets[$this->sn]['numCols'] = ord($this->data[$spos+6]) | ord($this->data[$spos+7]) << 8; } else { $this->sheets[$this->sn]['numRows'] = ord($this->data[$spos+4]) | ord($this->data[$spos+5]) << 8; $this->sheets[$this->sn]['numCols'] = ord($this->data[$spos+10]) | ord($this->data[$spos+11]) << 8; } } //echo 'numRows '.$this->numRows.' '.$this->numCols."n"; break; case SPREADSHEET_EXCEL_READER_TYPE_MERGEDCELLS: $cellRanges = ord($this->data[$spos]) | ord($this->data[$spos+1])<<8; for ($i = 0; $i < $cellRanges; $i++) { $fr = ord($this->data[$spos + 8*$i + 2]) | ord($this->data[$spos + 8*$i + 3])<<8; $lr = ord($this->data[$spos + 8*$i + 4]) | ord($this->data[$spos + 8*$i + 5])<<8; $fc = ord($this->data[$spos + 8*$i + 6]) | ord($this->data[$spos + 8*$i + 7])<<8; $lc = ord($this->data[$spos + 8*$i + 8]) | ord($this->data[$spos + 8*$i + 9])<<8; //$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 $fcn"; 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])<<8; $column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; $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])<<8; $column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; $xfindex = ord($this->data[$spos+4]) | ord($this->data[$spos+5])<<8; $index = $this->_GetInt4d($this->data, $spos + 6); //var_dump($this->sst); $this->addcell($row, $column, $this->sst[$index]); //echo "LabelSST $row $column $stringn"; break; case SPREADSHEET_EXCEL_READER_TYPE_MULRK: $row = ord($this->data[$spos]) | ord($this->data[$spos+1])<<8; $colFirst = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; $colLast = ord($this->data[$spos + $length - 2]) | ord($this->data[$spos + $length - 1])<<8; $columns = $colLast - $colFirst + 1; $tmppos = $spos+4; for ($i = 0; $i < $columns; $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]) << 8; $tmppos += 6; $this->addcell($row, $colFirst + $i, $string, $raw); //echo "MULRK $row ".($colFirst + $i)." $stringn"; } //MulRKRecord($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])<<8; $column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; $tmp = unpack("ddouble", substr($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 $stringn"; break; case SPREADSHEET_EXCEL_READER_TYPE_FORMULA: case SPREADSHEET_EXCEL_READER_TYPE_FORMULA2: $row = ord($this->data[$spos]) | ord($this->data[$spos+1])<<8; $column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; if ((ord($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 $column Formula with a string<br>n"; } elseif ((ord($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 $stringn"; } break; case SPREADSHEET_EXCEL_READER_TYPE_BOOLERR: $row = ord($this->data[$spos]) | ord($this->data[$spos+1])<<8; $column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; $string = ord($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])<<8; $column = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8; $this->addcell($row, $column, substr($this->data, $spos + 8, ord($this->data[$spos + 6]) | ord($this->data[$spos + 7])<<8)); // $this->addcell(LabelRecord($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[$spos+5]) << 8; //echo 'check is date '.$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; $i<8; $i++) { echo ord($this->data[$i+$spos+6]) . " "; } echo "<br>"; $sign = ($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 = $mantissalow2<br>n"; if ($sign) {$value = -1 * $value;} return $value; } function addcell($row, $col, $string, $raw = '') { //echo "ADD cel $row-$col $stringn"; $this->sheets[$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[$pos+1]) << 8) | (ord($data[$pos+2]) << 16) | (ord($data[$pos+3]) << 24); if ($value>=4294967294) { $value=-2; } return $value; } } /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * c-hanging-comment-ender-p: nil * End: */ ?> 2、调用方法 复制代码 代码如下: <?php $data = new ReadexcelSystem(); $data->setOutputEncoding('utf-8'); $data->read($location); print_r($data->sheets[0]['cells'] ); ?

前言 顾名思义文件缓存转内存缓存就是将存储在文件中的数据转到内存中去,实现磁盘操作转为内存操作,这样可以大大提高数据访问速度,并能实现缓存数据的分布式部署。文件缓存与内存缓存的介绍请参考名词解释部分。 原理 文件缓存转内存缓存的原理就是把文件缓存中的数据转存到内存中,以实现数据全局共享,解决频繁加载文件和装载数据的问题,采用Memcache工具实现内存缓存数据。 实现机制与步骤 1,检查文件是否存在内存缓存,如果不存在加载缓存文件 2,加载缓存文件,并获取缓存文件中的数据 3,将缓存文件中的数据写入内存 4,从内存中获取数据,并将数据注册为全局变量 5,返回数据 这个过程中最主要处理两个问题,第一个问题是缓存文件加载,如果要实现文件缓存转内存缓存,就需要有一个统一的文件缓存路径调度服务,用于实现文件是否实现内存缓存机制。第二个问题是如何注册全局变量,不管是从文件中获取数据还是内存中获取,如果需要实现通用,就需要有一个注册全局变量的机制。 文件缓存路径调度服务这个问题实现比较简单,但成本比较高,因为需要重构现在的文件缓存加载路径方式。 普通的文件缓存加载方式 require 'cache/config.php'; 文件缓存路径调度方式 require getCachePath('cache/config.php'); 上例中getCachePath()函数实现文件缓存路径调度服务。 其次是注册全局变量问题,需要考虑到数据的全局通用性,因此在使用上就有很多的注意事项,经过研究发现如下两种注册全局变量方式 1,循环注册 复制代码 代码如下: foreach ( $vars as $k => $v ) { $GLOBALS[$k] = $v; } 优点:重复键的情况下可保证最新的值正常 缺点:$vars数组的大小决定执行时间 2,直接追加 $GLOBALS += $vars; 优点:无循环,直接操作 缺点:如果键存在则不能写入 总结 文件缓存转内存缓存最主要处理文件加载方式与全局变量注册,在实际的应用过程中,要特别注意各缓存文件中变量名的不同,如果变量名存在相同,则可能在多个文件加载过程中造成数据覆盖。 在具体的开发实践中,能使用内存缓存则直接使用内存缓存,同时如果存在大量文件缓存加载的情况下,考虑实现文件缓存转内存缓存的机制。 名词解释 文件缓存是指将从数据库获取的数据存入文件中,这样下一次获取数据的时候就不需要从数据库获取而直接从文件中获取,这样就能够提升数据的访问速度,因此在很多的开源程序代码中都能看文件缓存的应用。 内存缓存是指将从数据库获取的数据存入内存中,目前应用比较广泛的如Memcache。

<?  ob_start();  ob_implicit_flush(0);<a id="more-27"></a>  function CheckCanGzip(){  global $HTTP_ACCEPT_ENCODING;  if (headers_sent() || connection_timeout() || connection_aborted()){  return 0;  }  if (strpos($HTTP_ACCEPT_ENCODING, 'x-gzip') !== false) return "x-gzip";  if (strpos($HTTP_ACCEPT_ENCODING,'gzip') !== false) return "gzip";  return 0;  }  /* $level = compression level 0-9, 0=none, 9=max */  function GzDocOut($level=1,$debug=0){  $ENCODING = CheckCanGzip();  if ($ENCODING){  print "\n<!-- Use compress $ENCODING -->\n";  $Contents = ob_get_contents();  ob_end_clean();  if ($debug){  $s = "<p>Not compress length: ".strlen($Contents);  $s .= "  Compressed length: ".strlen(gzcompress($Contents,$level));  $Contents .= $s;  }  header("Content-Encoding: $ENCODING");  print "\x1f\x8b\x08\x00\x00\x00\x00\x00";  $Size = strlen($Contents);  $Crc = crc32($Contents);  $Contents = gzcompress($Contents,$level);  $Contents = substr($Contents, 0, strlen($Contents) - 4);  print $Contents;  print pack('V',$Crc);  print pack('V',$Size);  exit;  }else{  ob_end_flush();  exit;  }  }   ?

二级分类的数据表结构如下: 复制代码 代码如下: PHP代码如下 /** @ 文章分类 含二级分类 @ param int $rootnum -- 一级分类数量 @ param int $childnum -- 二级分类数量 @ 返回值 array @ date 2011.2.24 */ function temp_articletreecate($rootnum,$childnum){ if(!isnumber($rootnum)){ $rootnum = 10; } if(!isnumber($childnum)){ $childnum = 10; } $category = array(); $parent_sql = "SELECT cateid,catename FROM ".TABLE_PREFIX."articlecate WHERE parentid=0 AND depth=0 AND flag=1 ORDER BY orders ASC"; if(intval($rootnum)>0){ $parent_sql.=" LIMIT $rootnum"; } $parent_cate = $GLOBALS['db']->getall($parent_sql); foreach($parent_cate as $parent_key => $parent_value){ //子类数组名为 childcategory 根据情况自定义名称 $category[] = array('cateid'=>$parent_value['cateid'],'catename'=>$parent_value['catename'],'childcategory'=>array()); //读取子类 $child_sql = "SELECT cateid,catename FROM ".TABLE_PREFIX."articlecate WHERE parentid=".$parent_value['cateid']." AND flag=1 ORDER BY orders ASC"; if(intval($childnum)>0){ $child_sql.=" LIMIT $childnum"; } $child_cate = $GLOBALS['db']->getall($child_sql); foreach($child_cate as $child_key => $child_value){ $category[count($category)-1]['childcategory'][] = array('cateid'=>$child_value['cateid'],'catename'=>$child_value['catename']); } } return $category; } PHP页面调用分类,如index.php $goodscatetree = array(); $goodscatetree = temp_goodstreecate(4,0); //调用分类函数(含二级分类)4--表示一级分类只显示4个,0--表示二级分类不限数量 $tpl>assign("goodscatetree",$goodscatetree); //执行smarty引擎 $tpl->display->(index.tpl); //输出smarty模版页面 TPL模版页面输出分类,如index.tpl页面 {section name=p loop=$goodscatetree} 一级分类:{$goodscatetree[p].catename} {section name=c loop=$goodscatetree[p].childcategory} 二级分类:

个人管理:    班级通讯录:class/address.php <? session_start(); // 开始session if(!session_is_registered("userregister")||($userregister==""))//检查是否注册,如userregister未注册或session为空值,重新注册. { echo "<a href='../index.php'>请重新注册<BR>"; exit; } ?> <HTML> <HEAD> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <TITLE>班级通讯录</TITLE> <style type="text/css"> <!-- .white12 {  font-size: 12pt; color: #FFFFFF; text-decoration: none} .blue9 {  font-size: 9pt; color: #9999FF} --> </style> </HEAD> <BODY BGCOLOR="#FFFFFF"> <table width="98%" border="0" cellspacing="0" cellpadding="0" height="65">   <tr>      <td width="35%"><img src="image/classlogo.gif" width="224" height="60"> </td>     <td width="65%">        <table width="97%" border="1" cellspacing="0" cellpadding="0" bordercolorlight="#CC0000" bordercolordark="#FFFFFF" bordercolor="#FFFFFF">         <tr>            <td><img src="image/aslist.gif" width="470" height="70" alt="班级通讯录"></td>         </tr>       </table>     </td>   </tr> </table> <?php include "config.php"; $result = mysql_query("SELECT * FROM user",$db); $row=mysql_num_rows($result);//查看结果有多少行 for ($i=0;$i<=($row-1);$i++) {    $name=mysql_result($result,$i,'name');    $sex=mysql_result($result,$i,'sex');    $birth=mysql_result($result,$i,'birth');    $ph=mysql_result($result,$i,'ph');    $bp=mysql_result($result,$i,'bp');    $email=mysql_result($result,$i,'email');    $oicq=mysql_result($result,$i,'oicq');    $work=mysql_result($result,$i,'work');    $photo=mysql_result($result,$i,'photo');    $ad=mysql_result($result,$i,'ad');    $post=mysql_result($result,$i,'post');    $account=mysql_result($result,$i,'account');    $face=mysql_result($result,$i,'face');    $face='image/face/icon'.$face;    echo "<table width='76%' border='1' cellspacing='0' cellpadding='0' bordercolorlight='#330099' bordercolordark='#FFFFFF' align='center' class='blue9'> <tr bgcolor='#3399FF'> <td colspan='8'>      <div class='white12' align='center'>......................○班级通讯录○....................</div>    </td> </tr> <tr>  <td width='30%'><img src='$face.gif' width='32' height='32'> 姓名:$name</td>  <td colspan='6'>性别:$sex</td> <td width='35%'>生日:$birth</td>  </tr> <tr> <td colspan='7'>电话: $ph</td> <td width='34%'>传呼:$bp</td> </tr> <tr>  <td colspan='7'>Email:<a href='mailto:$email'>$email</a></td>  <td width='34%'>oicq:$oicq</td> </tr> <tr> <td colspan='7'>工作单位:$work</td> <td width='34%'>邮编:$post</td></tr> <tr><td colspan='8'>通讯地址:$ad</td></tr> <tr>  <td colspan='8'>个人照片:$photo</td> </tr>  <tr> <td colspan='8'>个人说明:$account</td> </tr></table>"; }   ?>  </BODY> </HTML> 个人资料修改:class/modify.php <? session_start(); // 开始session if(!session_is_registered("userregister")||($userregister==""))//检查是否注册,如userregister未注册或session为空值,重新注册. { echo "<a href='../index.php'>请重新注册<BR>"; exit; } ?> <HTML> <HEAD> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <TITLE>个人资料修改</TITLE> </HEAD> <BODY BGCOLOR="#FFFFFF"> <?php include "config.php"; if ($submit){ if (!$username||!$psw||!$psw2||!$name||!$ad||!$ph||!$email){           //检查是否填写完整       echo "对不起,您必须填所有带*的项目!<BR>"."<a href='javascript:history.back()'>重填</a>";       exit;     } $user=trim($username); $psw=trim($psw); $psw2=trim($psw2); $name=trim($name); $birth=trim($birth); $work=trim($work); $ad=trim($ad); $post=trim($post); $ph=trim($ph); $bp=trim($bp); $email=trim($email); $oicq=trim($oicq); $account=strip_tags(trim($account));//去掉首尾空格及html标记 $signature=strip_tags(trim($signature)); //检查密码重复是否正确 if (!$psw==$psw2){ echo "请确认密码,<a href='javascript:history.back()'>返回</a>"; exit; } //检查email的合法性 if(!ereg('^[-!#$%&'*+./0-9=?A-Z^_`a-z{|}~]+'.'@'.'[-!#$%&'*+\/0-9=?A-Z^_`a-z{|}~]+.'.'[-!#$%&'*+\./0-9=?A-Z^_`a-z{|}~]+$',$email)&&$email){        echo "email不合法!<BR>"."<a href='register_step2.php?yname=$name'>重填</a><BR>";        exit;} //写入数据库 $sql="UPDATE user SET user='$user',psw='$psw',name='$name',sex='$sex',birth='$birth',work='$work',ad='$ad',post='$post',ph='$ph',bp='$bp',email='$email',oicq='$oicq',account='$account',signature='$signature',face='$face' where user='$userregister'"; $result = mysql_query($sql,$db); mysql_close($db); //发祝贺邮件 $subject="祝贺你成功修改个人信息".$sitename."!";//主题 $message=$name.",你好:<BR>  祝贺你成功修改个人信息!您的用户名为".$username.",密码为".$psw."<BR>现在登陆<a href='$url'>$sitename</a>";//信件内容 $headers .= "Content-Type: text/html; charset=gb2312n"; // Mime type mail($email,$subject,$message,$headers); echo "恭喜您修改成功!一封欢迎信已发到您的邮箱,请注意查收。"; exit; } $result = mysql_query("SELECT * FROM user where user='$userregister'",$db); $psw=mysql_result($result,0,"psw"); $name=mysql_result($result,0,"name");//读取个人注册信息 $sex=mysql_result($result,0,"sex"); $birth=mysql_result($result,0,"birth"); $work=mysql_result($result,0,"work"); $ad=mysql_result($result,0,"ad"); $post=mysql_result($result,0,"post"); $ph=mysql_result($result,0,"ph"); $bp=mysql_result($result,0,"bp"); $email=mysql_result($result,0,"email"); $oicq=mysql_result($result,0,"oicq"); $photo=mysql_result($result,0,"photo"); $account=mysql_result($result,0,"account"); $signature=mysql_result($result,0,"signature"); $face=mysql_result($result,0,"face"); mysql_close($db); ?> <table width='95%' border='0' cellspacing='0' cellpadding='0' align='center'>   <tr>      <td colspan="2">        <div align="center"><img src="image/classlogo.gif" width="224" height="60"></div>     </td>   </tr>   <tr>      <td>        <div align="center">个人资料修改<br>         注意不要有空格,带*的项目为必填。</div>     </td>   </tr>   <tr>      <td colspan="2">        <form method='post' action='<? echo $PHP_SELF;?>'>         <table width="95%" border="1" cellspacing="1" cellpadding="0" align="center" bordercolor="#FFCC00">           <tr>             <td height="153" width="60%"><br>               用户名:                <input type='Text' name='username' size='12' maxlength='12' value="<? echo $userregister;?>">               *<br>               (英文字母或加数字,长度不超过12)<br>           密码:            <input type='password' name='psw' size='8' maxlength='8' value="<? echo $psw; ?>">               *<br>               (英文字母或加数字,长度不超过8个字符)<br>           确认密码:            <input type='password' name='psw2' size='8' maxlength='8' value="<? echo $psw; ?>">           *<br>           姓名:            <input type='Text' name='name' size='8' maxlength='8' value="<? echo $name; ?>">           *<br>           性别:男            <input type='radio' name='sex' value='男' <? if ($sex=='男'){echo "checked";} ?>>           女            <input type='radio' name='sex' value='女' <? if ($sex=='女'){echo "checked";} ?>>           <br>           生日:<input type="text" name="birth" size="12" maxlength="12" value="<? echo $birth; ?>"><br>           工作单位:            <input type='Text' name='work' size='30' maxlength='50' value="<? echo $work; ?>">           <br>           通讯地址:            <input type='Text' name='ad' size='30' maxlength='50' value="<? echo $ad; ?>">           *<br>           邮编:            <input type='Text' name='post' size='6' maxlength='6' value="<? echo $post; ?>">           <br>           电话:            <input type='Text' name='ph' size='15' maxlength='30' value="<? echo $ph; ?>">           *<br>           传呼:            <input type='Text' name='bp' size='15' maxlength='20' value="<? echo $bp; ?>">           <br>           Email:            <input type='Text' name='email' size='15' maxlength='35' value="<? echo $email; ?>">           *<br>           oicq:            <input type='Text' name='oicq' size='12' maxlength='12' value="<? echo $oicq; ?>">           <br>           个人说明:(在通讯录里显示,不超过125个汉字)<BR>           <textarea name='account' cols='50' rows='5'><? echo $account; ?></textarea>           <br>           个人签名:(在留言簿的自动签名,不超过125个汉字)<br>               <textarea name="signature" cols="50" rows="5"><? echo $signature; ?></textarea>             </td>             <td height="153" width="40%"><br>               选择一个自己喜欢的头像:<br>           <?            for ($i=1;$i<=64;$i++){             echo "<img src='image/face/icon".$i.".gif' width='32' height='32'>";              echo "<input type='radio' name='face' value='$i' ";             if ($face==$i){             echo "checked";             }             echo ">";             if (($i%4)==0){ //隔4行,换行              echo "<br>";             }            }            ?><br>             </td>           </tr>         </table>         <div align="center">           <br>           <input type='Submit' name='submit' value='提交'>           <input type='reset' name='Reset' value='重写 '>         </div>       </form>     </td>   </tr> </table> </BODY> </HTML> 上传照片:class/uploadphoto.php <? session_start(); // 开始session if(!session_is_registered("userregister")||($userregister==""))//检查是否注册,如userregister未注册或session为空值,重新注册. { echo "<a href='../../index.php'>请重新注册<BR>"; exit; } ?> <HTML> <HEAD> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <TITLE>上传照片</TITLE> </HEAD> <BODY BGCOLOR="#FFFFFF"> <?php include "../config.php"; if ($upload){ if ($picurl=="none"){ echo "你没有上传任何文件."; exit; } $v=opendir("image");    if ($v==0)    { mkdir("image"); //若目录不存在,则新建一个   $v=opendir("image"); //取得目录handle   }   $up=copy("$picurl","image/$picurl_name");   if($up==1)    {   //初始化写入内容   $result = mysql_query("SELECT * FROM user where user='$userregister'",$db);//查询以往照片信息   $photo=mysql_result($result,0,'photo');   $photo=str_replace("'","'",$photo);//将'用'代替   $photo=$photo."<a href='upload/image/$picurl_name'>看照片</a>|";//加上此次内容   mysql_query("UPDATE user SET photo='$photo' where user='$userregister'",$db);//写入   mysql_close($db);   echo "文件上传成功!<BR>";   echo "文件名:$picurl_name 文件大小:$picurl_size byte 文件类型:$picurl_type<BR>";    }    else    {echo "文件上传失败.";exit;}   unlink ($picurl); //从临时文件夹中删除档案$picurl closedir ($v); //关闭目录handle exit; } ?> <table width="95%" border="0" cellspacing="0" cellpadding="0">   <tr>      <td height="56" width="32%"><img src="../image/classlogo.gif" width="224" height="60"></td>     <td height="56" width="68%">        <div align="center">上传照片</div>     </td>   </tr>   <tr>      <td height="108" colspan="2"><form action="<? echo $PHP_SELF;?>" method="post" enctype="multipart/form-data" name="UL">         <!--注意:这里必须加上‘enctype="multipart/form-data" ',否则不会产生上 传动作-->         <div align="center">上传照片:           <input type="file" name="picurl" size="15" accept="image/x-png,image/gif,

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