PHP File Download class

Copy codeThe Code is as follows: <?
// ================================================ ====================
// Example:
// $ Download = new download ('php, exe, html', false );
// If (! $ Download-> downloadfile ($ filename ))
//{
// Echo $ download-> geterrormsg ();
//}
// ================================================ ====================
Class download {
Var $ debug = true;
Var $ errormsg = '';
Var $ Filter = array ();
Var $ filename = '';
Var $ mineType = 'text/plain ';
Var $ xlq_filetype = array ();

Function download ($ fileFilter = '', $ isdebug = true)
{
$ This-> setFilter ($ fileFilter );
$ This-> setdebug ($ isdebug );
$ This-> setfiletype ();
}

Function setFilter ($ fileFilter)
{
If (empty ($ fileFilter) return;
$ This-> Filter = explode (',', strtolower ($ fileFilter ));
}
Function setdebug ($ debug)
{
$ This-> debug = $ debug;
}

Function setfilename ($ filename)
{
$ This-> filename = $ filename;
}

Function downloadfile ($ filename)
{
$ This-> setfilename ($ filename );
If ($ this-> filecheck ())
{
$ Fn = array_pop (explode ('/', strtr ($ this-> filename ,'\\','/')));
Header ("Pragma: public ");
Header ("Expires: 0"); // set expiration time
Header ("Cache-Component: must-revalidate, post-check = 0, pre-check = 0 ");
Header ("Content-type:". $ this-> mineType );
Header ("Content-Length:". filesize ($ this-> filename ));
Header ("Content-Disposition: attachment; filename = \" $ fn \"");
Header ('content-Transfer-Encoding: binary ');
Readfile ($ this-> filename );
Return true;
} Else
{
Return false;
}
}
Function geterrormsg ()
{
Return $ this-> errormsg;
}

Function filecheck ()
{
$ Filename = $ this-> filename;
If (file_exists ($ filename ))
{
$ Filetype = strtolower (array_pop (explode ('.', $ filename )));
If (in_array ($ filetype, $ this-> Filter ))
{
$ This-> errormsg. = $ filename. 'cannot be downloaded! ';
If ($ this-> debug) exit ($ filename. 'cannot be downloaded! ');
Return false;
} Else
{
If (function_exists ("mime_content_type "))
{
$ This-> mineType = mime_content_type ($ filename );
}
If (empty ($ this-> mineType ))
{
If (isset ($ this-> xlq_filetype [$ filetype]) $ this-> mineType = $ this-> xlq_filetype [$ filetype];
}
If (! Empty ($ this-> mineType ))
Return true;
Else
{
$ This-> errormsg. = 'get '. $ filename.' file type error occurs, or the specified file type does not exist ';
If ($ this-> debug) exit ('file type acquisition error ');
Return false;
}
}
} Else
{
$ This-> errormsg. = $ filename. 'does not exist! ';
If ($ this-> debug) exit ($ filename. 'does not exist! ');
Return false;
}
}

Function setfiletype ()
{
$ This-> xlq_filetype ['chm'] = 'application/octet-stream ';
$ This-> xlq_filetype ['ppt '] = 'application/vnd. ms-powerpoint ';
$ This-> xlq_filetype ['xls '] = 'application/vnd. ms-excel ';
$ This-> xlq_filetype ['Doc'] = 'application/msword ';
$ This-> xlq_filetype ['exe '] = 'application/octet-stream ';
$ This-> xlq_filetype ['rar '] = 'application/octet-stream ';
$ This-> xlq_filetype ['js'] = "javascript/js ";
$ This-> xlq_filetype ['css '] = "text/css ";
$ This-> xlq_filetype ['hqx'] = "application/mac-binhex40 ";
$ This-> xlq_filetype ['bin'] = "application/octet-stream ";
$ This-> xlq_filetype ['oda '] = "application/oda ";
$ This-> xlq_filetype ['pdf '] = "application/pdf ";
$ This-> xlq_filetype ['ai'] = "application/postsrcipt ";
$ This-> xlq_filetype ['eps '] = "application/postsrcipt ";
$ This-> xlq_filetype ['els'] = "application/postsrcipt ";
$ This-> xlq_filetype ['rtf '] = "application/rtf ";
$ This-> xlq_filetype ['miff'] = "application/x-mif ";
$ This-> xlq_filetype ['csh'] = "application/x-csh ";
$ This-> xlq_filetype ['dvi '] = "application/x-dvi ";
$ This-> xlq_filetype ['hdf'] = "application/x-hdf ";
$ This-> xlq_filetype ['nc '] = "application/x-netcdf ";
$ This-> xlq_filetype ['cdf'] = "application/x-netcdf ";
$ This-> xlq_filetype ['latex '] = "application/x-latex ";
$ This-> xlq_filetype ['ts'] = "application/x-troll-ts ";
$ This-> xlq_filetype ['src'] = "application/x-wais-source ";
$ This-> xlq_filetype ['zip'] = "application/zip ";
$ This-> xlq_filetype ['bcpio '] = "application/x-bcpio ";
$ This-> xlq_filetype ['cpio'] = "application/x-cpio ";
$ This-> xlq_filetype ['gtar'] = "application/x-gtar ";
$ This-> xlq_filetype ['shar '] = "application/x-shar ";
$ This-> xlq_filetype ['sv4cpio '] = "application/x-sv4cpio ";
$ This-> xlq_filetype ['sv4crc '] = "application/x-sv4crc ";
$ This-> xlq_filetype ['tar '] = "application/x-tar ";
$ This-> xlq_filetype ['ustar'] = "application/x-ustar ";
$ This-> xlq_filetype ['man'] = "application/x-troff-man ";
$ This-> xlq_filetype ['sh'] = "application/x-sh ";
$ This-> xlq_filetype ['tcl '] = "application/x-tcl ";
$ This-> xlq_filetype ['tex '] = "application/x-tex ";
$ This-> xlq_filetype ['text'] = "application/x-texinfo ";
$ This-> xlq_filetype ['textinfo'] = "application/x-texinfo ";
$ This-> xlq_filetype ['T'] = "application/x-troff ";
$ This-> xlq_filetype ['tr'] = "application/x-troff ";
$ This-> xlq_filetype ['roff'] = "application/x-troff ";
$ This-> xlq_filetype ['shar '] = "application/x-shar ";
$ This-> xlq_filetype ['me'] = "application/x-troll-me ";
$ This-> xlq_filetype ['ts'] = "application/x-troll-ts ";
$ This-> xlq_filetype ['gif'] = "image/gif ";
$ This-> xlq_filetype ['jpeg '] = "image/pjpeg ";
$ This-> xlq_filetype ['jpg '] = "image/pjpeg ";
$ This-> xlq_filetype ['jpe'] = "image/pjpeg ";
$ This-> xlq_filetype ['Ras '] = "image/x-cmu-raster ";
$ This-> xlq_filetype ['pbm'] = "image/x-portable-bitmap ";
$ This-> xlq_filetype ['ppm '] = "image/x-portable-pixmap ";
$ This-> xlq_filetype ['xbm '] = "image/x-xbitmap ";
$ This-> xlq_filetype ['xwd '] = "image/x-xwindowdump ";
$ This-> xlq_filetype ['ief'] = "image/ief ";
$ This-> xlq_filetype ['tif '] = "image/tiff ";
$ This-> xlq_filetype ['tiff '] = "image/tiff ";
$ This-> xlq_filetype ['pnm '] = "image/x-portable-anymap ";
$ This-> xlq_filetype ['pgm '] = "image/x-portable-graymap ";
$ This-> xlq_filetype ['rgb '] = "image/x-rgb ";
$ This-> xlq_filetype ['xpm '] = "image/x-xpixmap ";
$ This-> xlq_filetype ['txt '] = "text/plain ";
$ This-> xlq_filetype ['C'] = "text/plain ";
$ This-> xlq_filetype ['cc'] = "text/plain ";
$ This-> xlq_filetype ['H'] = "text/plain ";
$ This-> xlq_filetype ['html'] = "text/html ";
$ This-> xlq_filetype ['htm'] = "text/html ";
$ This-> xlq_filetype ['htl'] = "text/html ";
$ This-> xlq_filetype ['rtx'] = "text/richtext ";
$ This-> xlq_filetype ['etx'] = "text/x-setext ";
$ This-> xlq_filetype ['tsv'] = "text/tab-separated-values ";
$ This-> xlq_filetype ['mpeg '] = "video/mpeg ";
$ This-> xlq_filetype ['mpg'] = "video/mpeg ";
$ This-> xlq_filetype ['mpe'] = "video/mpeg ";
$ This-> xlq_filetype ['avi'] = "video/x-msvideo ";
$ This-> xlq_filetype ['qt '] = "video/quicktime ";
$ This-> xlq_filetype ['mov'] = "video/quicktime ";
$ This-> xlq_filetype ['moov '] = "video/quicktime ";
$ This-> xlq_filetype ['movi'] = "video/x-sgi-movie ";
$ This-> xlq_filetype ['au '] = "audio/basic ";
$ This-> xlq_filetype ['snd'] = "audio/basic ";
$ This-> xlq_filetype ['wav '] = "audio/x-wav ";
$ This-> xlq_filetype ['aif'] = "audio/x-aiff ";
$ This-> xlq_filetype ['aiff '] = "audio/x-aiff ";
$ This-> xlq_filetype ['aifc '] = "audio/x-aiff ";
$ This-> xlq_filetype ['swf '] = "application/x-shockwave-flash ";
}
}
?>