苗苗合作交流: PHP/Files and Folders

文件格式 by darx

Wed, 26 Apr 2006 01:50:16 GMT

'gif' => 'image/gif',
'jpg' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'jpe' => 'image/jpeg',
'bmp' => 'image/bmp',
'png' => 'image/png',
'tif' => 'image/tiff',
'tiff' => 'image/tiff',
'pict' => 'image/x-pict',
'pic' => 'image/x-pict',
'pct' => 'image/x-pict',
'tif' => 'image/tiff',
'tiff' => 'image/tiff',
'psd' => 'image/x-photoshop',

'swf' => 'application/x-shockwave-flash',
'js' => 'application/x-javascript',
'pdf' => 'application/pdf',
'ps' => 'application/postscript',
'eps' => 'application/postscript',
'ai' => 'application/postscript',
'wmf' => 'application/x-msmetafile',

'css' => 'text/css',
'htm' => 'text/html',
'html' => 'text/html',
'txt' => 'text/plain',
'xml' => 'text/xml',
'wml' => 'text/wml',
'wbmp' => 'image/vnd.wap.wbmp',

'mid' => 'audio/midi',
'wav' => 'audio/wav',
'mp3' => 'audio/mpeg',
'mp2' => 'audio/mpeg',

'avi' => 'video/x-msvideo',
'mpeg' => 'video/mpeg',
'mpg' => 'video/mpeg',
'qt' => 'video/quicktime',
'mov' => 'video/quicktime',

'lha' => 'application/x-lha',
'lzh' => 'application/x-lha',
'z' => 'application/x-compress',
'gtar' => 'application/x-gtar',
'gz' => 'application/x-gzip',
'gzip' => 'application/x-gzip',
'tgz' => 'application/x-gzip',
'tar' => 'application/x-tar',
'bz2' => 'application/bzip2',
'zip' => 'application/zip',
'arj' => 'application/x-arj',
'rar' => 'application/x-rar-compressed',

'hqx' => 'application/mac-binhex40',
'sit' => 'application/x-stuffit',
'bin' => 'application/x-macbinary',

'uu' => 'text/x-uuencode',
'uue' => 'text/x-uuencode',

'latex'=> 'application/x-latex',
'ltx' => 'application/x-latex',
'tcl' => 'application/x-tcl',

'pgp' => 'application/pgp',
'asc' => 'application/pgp',
'exe' => 'application/x-msdownload',
'doc' => 'application/msword',
'rtf' => 'application/rtf',
'xls' => 'application/vnd.ms-excel',
'ppt' => 'application/vnd.ms-powerpoint',
'mdb' => 'application/x-msaccess',
'wri' => 'application/x-mswrite',
);

/*
*   ռ2
*/
$mimetypes = array(
'ez'     => 'application/andrew-inset',
'hqx'     => 'application/mac-binhex40',
'cpt'     => 'application/mac-compactpro',
'doc'     => 'application/msword',
'bin'     => 'application/octet-stream',
'dms'     => 'application/octet-stream',
'lha'     => 'application/octet-stream',
'lzh'     => 'application/octet-stream',
'exe'     => 'application/octet-stream',
'class'     => 'application/octet-stream',
'so'     => 'application/octet-stream',
'dll'     => 'application/octet-stream',
'oda'     => 'application/oda',
'pdf'     => 'application/pdf',
'ai'     => 'application/postscript',
'eps'     => 'application/postscript',
'ps'     => 'application/postscript',
'smi'     => 'application/smil',
'smil'     => 'application/smil',
'mif'     => 'application/vnd.mif',
'xls'     => 'application/vnd.ms-excel',
'ppt'     => 'application/vnd.ms-powerpoint',
'wbxml'     => 'application/vnd.wap.wbxml',
'wmlc'     => 'application/vnd.wap.wmlc',
'wmlsc'     => 'application/vnd.wap.wmlscriptc',
'bcpio'     => 'application/x-bcpio',
'vcd'     => 'application/x-cdlink',
'pgn'     => 'application/x-chess-pgn',
'cpio'     => 'application/x-cpio',
'csh'     => 'application/x-csh',
'dcr'     => 'application/x-director',
'dir'     => 'application/x-director',
'dxr'     => 'application/x-director',
'dvi'     => 'application/x-dvi',
'spl'     => 'application/x-futuresplash',
'gtar'     => 'application/x-gtar',
'hdf'     => 'application/x-hdf',
'js'     => 'application/x-javascript',
'skp'     => 'application/x-koan',
'skd'     => 'application/x-koan',
'skt'     => 'application/x-koan',
'skm'     => 'application/x-koan',
'latex'     => 'application/x-latex',
'nc'     => 'application/x-netcdf',
'cdf'     => 'application/x-netcdf',
'sh'     => 'application/x-sh',
'shar'     => 'application/x-shar',
'swf'     => 'application/x-shockwave-flash',
'sit'     => 'application/x-stuffit',
'sv4cpio'   => 'application/x-sv4cpio',
'sv4crc'   => 'application/x-sv4crc',
'tar'     => 'application/x-tar',
'tcl'     => 'application/x-tcl',
'tex'     => 'application/x-tex',
'texinfo'   => 'application/x-texinfo',
'texi'     => 'application/x-texinfo',
't'         => 'application/x-troff',
'tr'     => 'application/x-troff',
'roff'     => 'application/x-troff',
'man'     => 'application/x-troff-man',
'me'     => 'application/x-troff-me',
'ms'     => 'application/x-troff-ms',
'ustar'     => 'application/x-ustar',
'src'     => 'application/x-wais-source',
'xhtml'     => 'application/xhtml+xml',
'xht'     => 'application/xhtml+xml',
'zip'     => 'application/zip',
'au'     => 'audio/basic',
'snd'     => 'audio/basic',
'mid'     => 'audio/midi',
'midi'     => 'audio/midi',
'kar'     => 'audio/midi',
'mpga'     => 'audio/mpeg',
'mp2'     => 'audio/mpeg',
'mp3'     => 'audio/mpeg',
'aif'     => 'audio/x-aiff',
'aiff'     => 'audio/x-aiff',
'aifc'     => 'audio/x-aiff',
'm3u'     => 'audio/x-mpegurl',
'ram'     => 'audio/x-pn-realaudio',
'rm'     => 'audio/x-pn-realaudio',
'rpm'     => 'audio/x-pn-realaudio-plugin',
'ra'     => 'audio/x-realaudio',
'wav'     => 'audio/x-wav',
'pdb'     => 'chemical/x-pdb',
'xyz'     => 'chemical/x-xyz',
'bmp'     => 'image/bmp',
'gif'     => 'image/gif',
'ief'     => 'image/ief',
'jpeg'     => 'image/jpeg',
'jpg'     => 'image/jpeg',
'jpe'     => 'image/jpeg',
'png'     => 'image/png',
'tiff'     => 'image/tiff',
'tif'     => 'image/tiff',
'djvu'     => 'image/vnd.djvu',
'djv'     => 'image/vnd.djvu',
'wbmp'     => 'image/vnd.wap.wbmp',
'ras'     => 'image/x-cmu-raster',
'pnm'     => 'image/x-portable-anymap',
'pbm'     => 'image/x-portable-bitmap',
'pgm'     => 'image/x-portable-graymap',
'ppm'     => 'image/x-portable-pixmap',
'rgb'     => 'image/x-rgb',
'xbm'     => 'image/x-xbitmap',
'xpm'     => 'image/x-xpixmap',
'xwd'     => 'image/x-xwindowdump',
'igs'     => 'model/iges',
'iges'     => 'model/iges',
'msh'     => 'model/mesh',
'mesh'     => 'model/mesh',
'silo'     => 'model/mesh',
'wrl'     => 'model/vrml',
'vrml'     => 'model/vrml',
'css'     => 'text/css',
'html'     => 'text/html',
'htm'     => 'text/html',
'asc'     => 'text/plain',
'txt'     => 'text/plain',
'rtx'     => 'text/richtext',
'rtf'     => 'text/rtf',
'sgml'     => 'text/sgml',
'sgm'     => 'text/sgml',
'tsv'     => 'text/tab-separated-values',
'wml'     => 'text/vnd.wap.wml',
'wmls'     => 'text/vnd.wap.wmlscript',
'etx'     => 'text/x-setext',
'xsl'     => 'text/xml',
'xml'     => 'text/xml',
'mpeg'     => 'video/mpeg',
'mpg'     => 'video/mpeg',
'mpe'     => 'video/mpeg',
'qt'     => 'video/quicktime',
'mov'     => 'video/quicktime',
'mxu'     => 'video/vnd.mpegurl',
'avi'     => 'video/x-msvideo',
'movie'     => 'video/x-sgi-movie',
'ice'     => 'x-conference/x-cooltalk',

通过PHP来产生EXCEL档 by teaman翻译

Tue, 25 Apr 2006 09:44:06 GMT

<?php
/****************************************************************
* Script : PHP Simple Excel File Generator - Base Class
* Project : PHP SimpleXlsGen
* Author : Erol Ozcan <eozcan@superonline.com>
* Version : 0.2
* Copyright : GNU LGPL
* URL : http://psxlsgen.sourceforge.net
* Last modified : 19 May 2001
* Description : This class is used to generate very simple
* MS Excel file (xls) via PHP.
* The generated xls file can be obtained by web as a stream
* file or can be written under $default_dir path. This package
* is also included mysql, pgsql, oci8 database interaction to
* generate xls files.
* Limitations:
* - Max character size of a text(label) cell is 255
* ( due to MS Excel 5.0 Binary File Format definition )
*
* Credits : This class is based on Christian Novak's small
* Excel library functions.
******************************************************************/

if( !defined( "PHP_SIMPLE_XLS_GEN" ) ) {
define( "PHP_SIMPLE_XLS_GEN", 1 );

class PhpSimpleXlsGen {
var $class_ver = "0.2"; // class version
var $xls_data = ""; // where generated xls be stored
var $default_dir = ""; // default directory to be saved file
var $filename = "psxlsgen"; // save filename
var $fname = ""; // filename with full path
var $crow = 0; // current row number
var $ccol = 0; // current column number
var $totalcol = 0; // total number of columns
var $get_type = 0; // 0=stream, 1=file
var $errno = 0; // 0=no error
var $error = ""; // error string
var $dirsep = "/"; // directory separator
var $header = 1; // 0=no header, 1=header line for xls table

// Default constructor
function PhpSimpleXlsGen()
{
$os = getenv( "OS" );
$temp = getenv( "TEMP");
// check OS and set proper values for some vars.
if ( stristr( $os, "Windows" ) ) {
$this->default_dir = $temp;
$this->dirsep = "\";
} else {
// assume that is Unix/Linux
$this->default_dir = "/tmp";
$this->dirsep = "/";
}
// begin of the excel file header
$this->xls_data = pack( "ssssss", 0x809, 0x08, 0x00,0x10, 0x0, 0x0 );
// check header text
if ( $this->header ) {
$this->Header();
}
}

function Header( $text="" ) {
if ( $text == "" ) {
$text = "This file was generated using PSXlsGen at ".date("r");
}
if ( $this->totalcol < 1 ) {
$this->totalcol = 1;
}
$this->InsertText( $text );
$this->crow += 2;
$this->ccol = 0;
}

// end of the excel file
function End()
{
$this->xls_data .= pack( "ss", 0x0A, 0x00 );
return;
}

// write a Number (double) into row, col
function WriteNumber_pos( $row, $col, $value )
{
$this->xls_data .= pack( "sssss", 0x0203, 14, $row, $col, 0x00 );
$this->xls_data .= pack( "d", $value );
return;
}

// write a label (text) into Row, Col
function WriteText_pos( $row, $col, $value )
{
$len = strlen( $value );
$this->xls_data .= pack( "s*", 0x0204, 8 + $len, $row, $col, 0x00, $len );
$this->xls_data .= $value;
return;
}

// insert a number, increment row,col automatically
function InsertNumber( $value )
{
if ( $this->ccol == $this->totalcol ) {
$this->ccol = 0;
$this->crow++;
}
$this->WriteNumber_pos( $this->crow, $this->ccol, &$value );
$this->ccol++;
return;
}

// insert a number, increment row,col automatically
function InsertText( $value )
{
if ( $this->ccol == $this->totalcol ) {
$this->ccol = 0;
$this->crow++;
}
$this->WriteText_pos( $this->crow, $this->ccol, &$value );
$this->ccol++;
return;
}

// Change position of row,col
function ChangePos( $newrow, $newcol )
{
$this->crow = $newrow;
$this->ccol = $newcol;
return;
}

// new line
function NewLine()
{
$this->ccol = 0;
$this->crow++;
return;
}

// send generated xls as stream file
function SendFile( $filename )
{
$this->filename = $filename;
$this->SendFile();
}
// send generated xls as stream file
function SendFile()
{
$this->End();
header ( "Expires: Mon, 1 Apr 1974 05:00:00 GMT" );
header ( "Last-Modified: " . gmdate("D,d M YH:i:s") . " GMT" );
header ( "Cache-Control: no-cache, must-revalidate" );
header ( "Pragma: no-cache" );
header ( "Content-type: application/x-msexcel" );
header ( "Content-Disposition: attachment; filename=$this->filename.xls" );
header ( "Content-Description: PHP Generated XLS Data" );
print $this->xls_data;
}

// change the default saving directory
function ChangeDefaultDir( $newdir )
{
$this->default_dir = $newdir;
return;
}

// Save generated xls file
function SaveFile( $filename )
{
$this->filename = $filename;
$this->SaveFile();
}

// Save generated xls file
function SaveFile()
{
$this->End();
$this->fname = $this->default_dir."$this->dirsep".$this->filename;
if ( !stristr( $this->fname, ".xls" ) ) {
$this->fname .= ".xls";
}
$fp = fopen( $this->fname, "wb" );
fwrite( $fp, $this->xls_data );
fclose( $fp );
return;
}

// Get generated xls as specified type
function GetXls( $type = 0 ) {
if ( !$type && !$this->get_type ) {
$this->SendFile();
} else {
$this->SaveFile();
}
}
} // end of the class PHP_SIMPLE_XLS_GEN
}
// end of ifdef PHP_SIMPLE_XLS_GEN

<?php
/****************************************************************
* Script : Simple test example for PhpSimpleXlsGen
* Project : PHP SimpleXlsGen
* Author : Erol Ozcan <eozcan@superonline.com>
* Version : 0.2
* Copyright : GNU LGPL
* URL : http://psxlsgen.sourceforge.net
* Last modified : 18 May 2001
******************************************************************/
include( "psxlsgen.php" );

$myxls = new PhpSimpleXlsGen();
$myxls->totalcol = 2;
$myxls->InsertText( "Erol" );
$myxls->InsertText( "Ozcan" );
$myxls->InsertText( "This text should be at (3,0) if header was used, otherwise at (1,0)" );
$myxls->ChangePos(4,0);
$myxls->InsertText( "You must pay" );
$myxls->InsertNumber( 20.48 );
$myxls->WriteText_pos(4,2, "USD to use this class :-))" ); // hidden costs :-))
$myxls->SendFile();

通过PHP来产生EXCEL档 by teaman翻译

Tue, 25 Apr 2006 09:43:07 GMT

----------------------------
Excel Functions
----------------------------
将下面的代码存为excel.php ,然后在页面中包括进来

然后调用
1. Call xlsBOF()
2. 将一些内容写入到xlswritenunber() 或者 xlswritelabel()中.
3.然后调用 Call xlsEOF()

也可以用 fwrite 函数直接写到服务器上，而不是用echo 仅仅在浏览器上显示。

PHP代码:--------------------------------------------------------------------------------

<?php
// ----- begin of function library -----
// Excel begin of file header
function xlsBOF() {
echo pack("ssssss", 0x809, 0x8, 0x0, 0x10, 0x0, 0x0);
return;
}
// Excel end of file footer
function xlsEOF() {
echo pack("ss", 0x0A, 0x00);
return;
}
// Function to write a Number (double) into Row, Col
function xlsWriteNumber($Row, $Col, $Value) {
echo pack("sssss", 0x203, 14, $Row, $Col, 0x0);
echo pack("d", $Value);
return;
}
// Function to write a label (text) into Row, Col
function xlsWriteLabel($Row, $Col, $Value ) {
$L = strlen($Value);
echo pack("ssssss", 0x204, 8 + $L, $Row, $Col, 0x0, $L);
echo $Value;
return;
}
// ----- end of function library -----
?>

//
// To display the contents directly in a MIME compatible browser
// add the following lines on TOP of your PHP file:

<?php
header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header ("Last-Modified: " . gmdate("D,d M YH:i:s") . " GMT");
header ("Cache-Control: no-cache, must-revalidate");
header ("Pragma: no-cache");
header ('Content-type: application/x-msexcel');
header ("Content-Disposition: attachment; filename=EmplList.xls" );
header ("Content-Description: PHP/INTERBASE Generated Data" );
//
// the next lines demonstrate the generation of the Excel stream
//
xlsBOF(); // begin Excel stream
xlsWriteLabel(0,0,"This is a label"); // write a label in A1, use for dates too
xlsWriteNumber(0,1,9999); // write a number B1
xlsEOF(); // close the stream
?>

用php写的一个HTTP下载类

Mon, 03 Apr 2006 01:23:13 GMT

在php中，下载http资源比较常用的一种做法就是用 file_get_contents 这个函数，但这函数无法获得http头的信息，会给一些应用带来不方便，因此我写了一个http下载类来解决这个问题，测试感觉速度和file_get_contents相差无几。

<?
/*=======================================
// 织梦Http下载类
// 织梦之旅 www.dedecms.com
=======================================*/
class DedeHttpDown
{
var $m_url = "";
var $m_urlpath = "";
var $m_scheme = "http";
var $m_host = "";
var $m_port = "80";
var $m_user = "";
var $m_pass = "";
var $m_path = "/";
var $m_query = "";
var $m_fp = "";
var $m_error = "";
var $m_httphead = "" ;
var $m_html = "";
//
//初始化系统
//
function PrivateInit($url)
{
 $urls = "";
 $urls = @parse_url($url);
 $this->m_url = $url;
 if(is_array($urls))
 {
 $this->m_host = $urls["host"];
 if(!empty($urls["scheme"])) $this->m_scheme = $urls["scheme"];

 if(!empty($urls["user"])){
 $this->m_user = $urls["user"];
 }

 if(!empty($urls["pass"])){
 $this->m_pass = $urls["pass"];
 }

if(!empty($urls["port"])){
 $this->m_port = $urls["port"];
 }

 if(!empty($urls["path"])) $this->m_path = $urls["path"];
 $this->m_urlpath = $this->m_path;

 if(!empty($urls["query"]))
 {
 $this->m_query = $urls["query"];
 $this->m_urlpath .= "?".$this->m_query;
 }
 }
}
//
//打开指定网址
//
function OpenUrl($url)
{
 //重设各参数
 $this->m_url = "";
 $this->m_urlpath = "";
 $this->m_scheme = "http";
 $this->m_host = "";
 $this->m_port = "80";
 $this->m_user = "";
 $this->m_pass = "";
 $this->m_path = "/";
 $this->m_query = "";
 $this->m_error = "";
 $this->m_httphead = "" ;
 $this->m_html = "";
 $this->Close();
 //初始化系统
 $this->PrivateInit($url);
 $this->PrivateStartSession();
}
//
//获得某操作错误的原因
//
function printError()
{
 echo "错误信息：".$this->m_error;
 echo "具体返回头： ";
 foreach($this->m_httphead as $k=>$v)
 { echo "$k => $v \r\n"; }
}
//
//判别用Get方法发送的头的应答结果是否正确
//
function IsGetOK()
{
 if( ereg("^2",$this->GetHead("http-state")) )
 { return true; }
 else
 {
 $this->m_error .= $this->GetHead("http-state")." - ".$this->GetHead("http-describe")." ";
 return false;
 }
}
//
//看看返回的网页是否是text类型
//
function IsText()
{
 if(ereg("^2",$this->GetHead("http-state"))
 && eregi("^text",$this->GetHead("content-type")))
 { return true; }
 else
 {
 $this->m_error .= "内容为非文本类型 ";
 return false;
 }
}
//
//判断返回的网页是否是特定的类型
//
function IsContentType($ctype)
{
 if(ereg("^2",$this->GetHead("http-state"))
 && $this->GetHead("content-type")==strtolower($ctype))
 { return true; }
 else
 {
 $this->m_error .= "类型不对 ".$this->GetHead("content-type")." ";
 return false;
 }
}
//
//用Http协议下载文件
//
function SaveToBin($savefilename)
{
 if(!$this->IsGetOK()) return false;
 if(@feof($this->m_fp))
 { $this->m_error = "连接已经关闭！"; return false; }
 $fp = fopen($savefilename,"w") or die("写入文件 $savefilename 失败！");
 while(!feof($this->m_fp)){
 @fwrite($fp,fgets($this->m_fp,256));
 }
 @fclose($this->m_fp);
 return true;
}
//
//保存网页内容为Text文件
//
function SaveToText($savefilename)
{
 if($this->IsText()) $this->SaveBinFile($savefilename);
 else return "";
}
//
//用Http协议获得一个网页的内容
//
function GetHtml()
{
 if(!$this->IsText()) return "";
 if($this->m_html!="") return $this->m_html;
 if(!$this->m_fp||@feof($this->m_fp)) return "";
 while(!feof($this->m_fp)){
 $this->m_html .= fgets($this->m_fp,256);
 }
 @fclose($this->m_fp);
 return $this->m_html;
}
//
//开始HTTP会话
//
function PrivateStartSession()
{
 if(!$this->PrivateOpenHost()){
 $this->m_error .= "打开远程主机出错!";
 return false;
 }
 if($this->GetHead("http-edition")=="HTTP/1.1") $httpv = "HTTP/1.1";
 else $httpv = "HTTP/1.0";
 fputs($this->m_fp,"GET ".$this->m_urlpath." $httpv\r\n");
 fputs($this->m_fp,"Host: ".$this->m_host."\r\n");
 fputs($this->m_fp,"Accept: */*\r\n");
 fputs($this->m_fp,"User-Agent: Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.2)\r\n");
 //HTTP1.1协议必须指定文档结束后关闭链接,否则读取文档时无法使用feof判断结束
 if($httpv=="HTTP/1.1") fputs($this->m_fp,"Connection: Close\r\n\r\n");
 else fputs($this->m_fp,"\r\n");
 $httpstas = fgets($this->m_fp,256);
 $httpstas = split(" ",$httpstas);
 $this->m_httphead["http-edition"] = trim($httpstas[0]);
 $this->m_httphead["http-state"] = trim($httpstas[1]);
 $this->m_httphead["http-describe"] = "";
 for($i=2;$i<count($httpstas);$i++){
 $this->m_httphead["http-describe"] .= " ".trim($httpstas[$i]);
 }
 while(!feof($this->m_fp)){
 $line = str_replace("\"","",trim(fgets($this->m_fp,256)));
 if($line == "") break;
 if(ereg(":",$line)){
 $lines = split(":",$line);
 $this->m_httphead[strtolower(trim($lines[0]))] = trim($lines[1]);
 }
 }
}
//
//获得一个Http头的值
//
function GetHead($headname)
{
 $headname = strtolower($headname);
 if(isset($this->m_httphead[$headname]))
 return $this->m_httphead[$headname];
 else
 return "";
}
//
//打开连接
//
function PrivateOpenHost()
{
 if($this->m_host=="") return false;
 $this->m_fp = @fsockopen($this->m_host, $this->m_port, &$errno, &$errstr,10);
 if(!$this->m_fp){
 $this->m_error = $errstr;
 return false;
 }
 else{
 return true;
 }
}
//
//关闭连接
//
function Close(){
 @fclose($this->m_fp);
}
}

这个类的使用方法：下载网页
<?
$httpdown = new DedeHttpDown();
$httpdown->OpenUrl("http://www.dedecms.com");
echo $httpdown->GetHtml();
$httpdown->Close();
?>
如果下载图片并保存,可以用
<?
$httpdown = new DedeHttpDown();
$httpdown->OpenUrl("http://prato.bokele.com/5/prato/bGluMi5qcGc=.jpg");
echo $httpdown->SaveBin("test.jpg");
$httpdown->Close();
echo "<img src='test.jpg'>";
?>

[PHP] PHP实现文件安全下载

Thu, 08 Dec 2005 09:08:52 GMT

你一定会笑我"下载文件"如此简单都值得说？当然并不是想象那么简单。例如你希望客户要填完一份表格，才可以下载某一文件，你第一个想法一定是用 "Redirect"的方法，先检查表格是否已经填写完毕和完整，然后就将网址指到该文件，这样客户才能下载，但如果你想做一个关于"网上购物"的电子商务网站，考虑安全问题，你不想用户直接复制网址下载该文件，笔者建议你使用PHP直接读取该实际文件然后下载的方法去做。程序如下：

$file_name = "info_check.exe";
$file_dir = "/public/www/download/";
if (!file_exists($file_dir . $file_name)) { //检查文件是否存在
echo "文件找不到";
exit;
} else {
$file = fopen($file_dir . $file_name,"r"); // 打开文件
// 输入文件标签
Header("Content-type: application/octet-stream");
Header("Accept-Ranges: bytes");
Header("Accept-Length: ".filesize($file_dir . $file_name));
Header("Content-Disposition: attachment; filename=" . $file_name);
// 输出文件内容
echo fread($file,filesize($file_dir . $file_name));
fclose($file);
exit;}

而如果文件路径是"http" 或者 "ftp" 网址的话，则源代码会有少许改变，程序如下：

$file_name = "info_check.exe";
$file_dir = "http://www.easycn.net/";
$file = @ fopen($file_dir . $file_name,"r");
if (!$file) {
echo "文件找不到";
} else {
Header("Content-type: application/octet-stream");
Header("Content-Disposition: attachment; filename=" . $file_name);
while (!feof ($file)) {
echo fread($file,50000);
}
fclose ($file);
}

这样就可以用PHP直接输出文件了。

[PHP] 几种删除目录的方法

Wed, 07 Dec 2005 05:08:53 GMT

// by heiyeluren 2005/07/28

1。递规法： //我提供，好像有点不对，没测试

deleteDir($dir)
{
if (rmdir($dir)==false && is_dir($dir)) {
if ($dp = opendir($dir)) {
   while (($file=readdir($dp)) != false) {
    if (is_dir($file) && $file!='.' && $file!='..') {
     deleteDir($file);
    } else {
     unlink($file);
    }
   }
   closedir($dp);
} else {
   exit('Not permission');
}
}
}

// 再附一段代码

function deldir($dir){
$current_dir = opendir($dir);
while($entryname = readdir($current_dir)){
if(is_dir("$dir/$entryname") and ($entryname != "." and $entryname!="..")){
   deldir("${dir}/${entryname}");
}elseif($entryname != "." and $entryname!=".."){
   unlink("${dir}/${entryname}");
}
}
closedir($current_dir);
rmdir($dir);
}

2。系统调用法     //大师兄提供

function del_dir($dir)
{
if(strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
     $str = "rmdir /s/q " . $dir;
} else {
     $str = "rm -Rf " . $dir;
}
}

3。循环法   //from: http://www.knowsky.com/1148.html

function deltree($pathdir)
{
echo $pathdir;//我调试时用的

if(is_empty_dir($pathdir))//如果是空的
    {
    rmdir($pathdir);//直接删除
    }
    else
    {//否则读这个目录，除了.和..外
        $d=dir($pathdir);
        while($a=$d->read())
        {
        if(is_file($pathdir.'/'.$a) && ($a!='.') && ($a!='..')){unlink($pathdir.'/'.$a);}
        //如果是文件就直接删除
        if(is_dir($pathdir.'/'.$a) && ($a!='.') && ($a!='..'))
        {//如果是目录
            if(!is_empty_dir($pathdir.'/'.$a))//是否为空
            {//如果不是，调用自身，不过是原来的路径+他下级的目录名
            deltree($pathdir.'/'.$a);
            }
            if(is_empty_dir($pathdir.'/'.$a))
            {//如果是空就直接删除
            rmdir($pathdir.'/'.$a);
            }
        }
        }
        $d->close();

    echo "必须先删除目录下的所有文件";//我调试时用的

    }
}

function is_empty_dir($pathdir)
{

//判断目录是否为空，我的方法不是很好吧？只是看除了.和..之外有其他东西不是为空
$d=opendir($pathdir);
$i=0;
    while($a=readdir($d))
    {
    $i++;
    }
closedir($d);
if($i>2){return false;}
else return true;

}

[PHP] 获取某个目录大小

Wed, 07 Dec 2005 04:55:30 GMT

大致就是不知道目录下面又多少层目录, 也不知道又多少文件, 需要统计占用空间大小, 这个可以用在相册/数据库占用/网络U盘等程序中.

大致程序思想就是使用递规来计算目录占用空间多少, 然后再把这个占用空间的值写进文本文件里, 那么只要访问这个txt文件就知道占用了多少空间, 不用频繁获取而读磁盘, 节省资源. 每次用户如果上传的文件或者删除了文件, 那么又重新进行统计. 当然, 也可以把统计结果保存到数据库里.

<?
/**
* File: fetch user directory use size
* Author: heiyeluren <heiyeluren_AT_gmail_com>
* Create: 2005-9-19 16:20
* Modifed: 2005-9-19 16:41
*/

/*** 基本函数 ***/

//计算目录大小
function countDirSize($dir)
{
$handle = opendir($dir);
while (false!==($FolderOrFile = readdir($handle)))
{
if($FolderOrFile != "." && $FolderOrFile != "..")
{
 if(is_dir("$dir/$FolderOrFile")) {
 $sizeResult += getDirSize("$dir/$FolderOrFile");
 } else {
 $sizeResult += filesize("$dir/$FolderOrFile");
 }
}
}
closedir($handle);
return $sizeResult;
}

//保存用户文件大小
function saveDirSize($userDir)
{
$userDirSize = countDirSize($userDir);
if (!$fp = fopen($userDir."/dir_size.txt", "w+")) {
 die("Open file failed");
} else {
 fwrite($fp, $dirSize);
}
}

//获取用户目录的大小
function getDirSize($userDir)
{
$user = addslashes($userDir);
$sizeFile = $userDir."/dir_size.txt";
if (!$fp = fopen($sizeFile, "r") {
return 0;
} else {
$dirSize = fread($fp, filesize($sizeFile));
}
return $dirSize;
}

/*** 调用实例 ***/
$user = "heiyeluren";
$userPath = "./user/".$user;

//如果用户执行了删除或者上传文件的操作就重新获取目录大小
if ($action == "upload" || $action == "delete") {
saveDirSize($userPath);
}

$userDirSize = getDirSize($userPath)/1024;
echo "用户: ".$user;
echo "占用空间: ".$userDirSize;

?>

[PHP] 读取某个目录下的文件

Wed, 07 Dec 2005 04:42:00 GMT

<?php
/*
PHP Version: 28 April 2005
Author: move2rent
purpose:读取某个目录下的文件
*/

//要读取的目录
$folder="H:/temp";

//打开目录
$fp=opendir($folder);

//阅读目录
while(false!=$file=readdir($fp))
{
//列出所有文件并去掉'.'和'..'
    if($file!='.' &&$file!='..')
    {
        //$file="$folder/$file";
        $file="$file";

//赋值给数组
$arr_file[]=$file;

}
}
//输出结果
if(is_array($arr_file))
{
 while(list($key,$value)=each($arr_file))
 {
 echo "$key=>$value ";
 }

}

//关闭目录

closedir($fp);

---------------------------------------------------------
读取某个目录下的文件2

<?php

/*PHP Version: 30 April 2005
Author: move2rent
purpose:读取某个目录下的文件二*/

/*-------------------------------------------------------------------------*/

function listFiles($dir)
{
//打开目录

$handle=opendir($dir);

//阅读目录

while(false!=($file=readdir($handle)))

{
//列出所有文件并去掉'.'和'..'

if($file!='.'&&$file!='..')

{

//所得到的文件名是否是一个目录

if(is_dir("$dir/$file"))

{
//列出目录下的文件

listFiles("$dir/$file");

}

else

{
//如果是文件则打开该文件

$fp=fopen("$dir/$file","r");

//阅读文件内容

$data=fread($fp,filesize("$dir/$file"));

if($data)

//将读到的内容赋值给一个数组

$file_array[]="$dir/$file";

/*foreach($file_array as $key=>$value)
 {
 echo "$value ";
 }
 */
 //echo count($file_array);

//输出结果

while(list($key,$value)=each($file_array))
 {
 echo"$key=>$value ";
 }
 }

             }
         }
    }

/*-------------------------------------------------------------------------*/
//调用

$dir="H:/temp";

listFiles($dir);

----------------------------------------------------------------------------------------
如果该目录不存在则创建它

<?php

/*
PHP Version: 28 April 2005
Author: move2rent
purpose:读取某个目录下的文件,如果该目录不存在则创建它
*/

$folder="H:/temp1";

//打开目录
@$fp=opendir($folder);

   //如果该目录不存在则创建它
    if(!$fp)
   {

//创建目录
mkdir($folder);

//修改该目录的权限
chmod($folder,'0755');

echo " the folder create success!";

}

    else
    {
        echo " the folder have exists.";
    }

[PHP] 上传类

Fri, 02 Dec 2005 08:59:06 GMT

<?php
/**
* File up load class
* @version 1.0.0 (Thu Aug 18 01:32:39 CST 2005)
* @author sanshi
*/
class upLoad
{
/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:00:18 CST 2005
* @param string $info 文件内容
* @param string $fileName 生成的文件名
* @return boolean 建立成功返回true
* @deprecated
* 建立html文件
*/
function createHtml( $info ,$fileName )
{
}
/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:03:09 CST 2005
* @return void
* @deprecated
* 构造函数
*/
function downLoad()
{}
/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:03:55 CST 2005
* @param string $fileField 在表单中的字段名
* @param string $length 限制的长度
* @return boolean 成功返回true
* @deprecated
* 功能实现函数
*/
function init($fileField,$length='')
{
 $files = $_FILES[$fileField];
 //用户名需要改动，根据自己的实际情况做改动
 $userName = 'sanshi';
 $fileName = $files['name'];
 $fileType = $files['type'];
 $fileTemp = $files['tmp_name'];
 $fileSize = empty( $length ) ? ($files['size']+10) : $length;
 $fileError= $files['error'];//这块也许php4中没有
 //改为
 //if( $this->_isType( $fileName ) || $this->_isBig( $length　) )
 if( !$this->_isType( $fileName ) || $this->_isBig( $length　) || $fileError != 0 )
 {
 //print_r ($files);
 return false;
 }else{
 $path = $this->_createDir( $userName );//取得路径
 $createFileName = $userName . "_" . time();//设置当前文件名
 $createFileType = $this->getFileType($fileName);//设置文件类别
 return @move_uploaded_file($fileTemp,$path.$createFileName.'.'.$createFileType) ? true : false;
 }
}

/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:07:43 CST 2005
* @param int $length 上传限制的大小
* @return boolean 超过返回true
* @deprecated
* 判断是否超过预定大小
*/
function _isBig($length)
{
 $bigest = '';
 return $big > $bigest ? true : false;
}
/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:08:55 CST 2005
* @param string $fileName 文件名
* @return string $fileType 文件后缀
* @deprecated
* 取得文件后缀（只取得文件的最后一个后缀名）
*/
function getFileType($fileName)
{
 return end(explode('.',$fileName));
}
/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:10:41 CST 2005
* @param string $fileName 文件名
* @param boolean $method 是否检查多个后缀默认false
* @param int $postFix 后缀个数默认为２
* @return boolean 存在返回true
* @deprecated
* 检查文件的后缀是否在类别数组中，类别数组自己设置
* 如果$method设置为true则检查文件有几个后缀
*/
function _isType($fileName,$method='false',$postFix=2)
{
 //设置类别数组
 $type = array('jpeg',
 'gif',
 'bmp',
 'exe');
 $fileName = strtolower( $fileName );
 $fileTypeArray = explode( '.',$fileName );
 $fileType = end( $fileTypeArray );
 //判断是否有一个文件有多个后缀
 if($method)
 {
 if( count( $fileTypeArray ) > (is_int($postFix) ? $postFix : 2) )
 {
 return false;
 }
 }
 return in_array($fileType,$type);
}

/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:17:19 CST 2005
* @param string $userName
* @return string $path
* @deprecated
* 建立目录目录格式年/月/日/用户名/
* 权限为７５５
*/
function _createDir($userName)
{
 $root = '';
 $pathSign = DIRECTORY_SEPARATOR;
 $y = date('Y').$pathSign;
 $m = date('m').$pathSign;
 $d = date('d').$pathSign;
 $path = $root . $y . $m . $d . $userName;
 $dirArray = explode( $pathSign,$path);
 $tempDir='';
 foreach ( $dirArray as $dir)
 {
 $tempDir.= $dir.$pathSign;
 $isFile = file_exists( $tempDir );
 clearstatcache();
 if( ! $isFile && !is_dir( $tempDir ) )
 {
 @mkdir($tempDir,0755);
 }
 }
 return $path . $pathSign;
}
/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:19:32 CST 2005
* @param 　string $dirName 目录名
* @return 　 boolean 可以操作返回true
* @deprecated
* 判断操作是否在上传目录
*/
function _isDel($dirName)
{
 //注意upLoadDir,一定要与真正使用目录相对应
 $upLoadDir = '';
 $upLoadDir = preg_replace('/\\//','\/',$upLoadDir);
 $format = "/^{$upLoadDir}/";
 return preg_match( $format,$dirName );
}
/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:25:58 CST 2005
* @param string $fileName 文件名
* @return boolean 删除文件成功返回true
* @deprecated
* 删除文件
*/
function delFile( $fileName )
{
 $cur_dir = dirname(trim($fileName));
 if( $this->_isDel( $cur_dir ) )
 {
 return @unlink( $fileName ) ? true : false;
 }else{
 return false;
 }
}
/**
*
* @author sanshi
* @version 1.0.0 Thu Aug 18 01:27:43 CST 2005
* @param string $dieName 目录名
* @return boolean 删除成功返回true
* @deprecated
* 删除目录目录下如果有文件不能删除
*/
function delDir( $dirName )
{
 if( $this->_isDel($dirName) && is_dir( $dirName ) )
 {
 return @rmdir( $dirName ) ? true : false;
 }else{
 return false;
 }
}

}
?>
<?php
//使用
/*
include 'upLoad.class.php';
$up = new upLoad();
if($up->init("file"))
{
echo 'success';
}else{
echo 'failure';
}
*/
?>

苗苗 合作 交流: PHP/Files and Folders

文件格式 by darx

通过PHP来产生EXCEL档 by teaman翻译

通过PHP来产生EXCEL档 by teaman翻译

用php写的一个HTTP下载类

[PHP] PHP实现文件安全下载

[PHP] 几种删除目录的方法

[PHP] 获取某个目录大小

[PHP] 读取某个目录下的文件

[PHP] 上传类

苗苗合作交流: PHP/Files and Folders