PHP get local PC files after download Save as _php tutorial

Download the file in PHP we use the most is directly using the ReadFile () function, ReadFile () can implement the server source files to download, let me introduce ReadFile download file methods and performance introduction

Example 1

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Header ("content-type:text/html; Charset=utf-8″); Header ("Content-type:application/text"); The file will be called Downloaded.pdf Header ("Content-disposition:attachment;filename=log.text"); PDF Source in Original.pdf ReadFile ("ptindex_user_profilebasc.html"); ?>

Example 2

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< p> $item =trim ($_get[' fileName '). ". TXT "; $abs _item= '/usr/home/folder name/folder name/folder name/'. $item; $browser = ' IE '; Header (' Content-type: '). ( ($browser = = ' IE ' | | $browser = = ' OPERA ')? ' application/octetstream ': ' Application/octet-stream '); Header (' Expires: '. Gmdate (' d, D M Y h:i:s '). ' GMT '); Header (' content-transfer-encoding:binary '); Header (' content-length: '. FileSize ($abs _item)); if ($browser = = ' IE ') { header (' content-disposition:attachment; Filename= '. $item. '); Header (' Cache-control:must-revalidate, post-check=0, pre-check=0 '); Header (' pragma:public '); } else { header (' content-disposition:attachment; Filename= '. $item. '); Header (' Cache-control:no-cache, Must-revalidate '); Header (' Pragma:no-cache '); } @readfile ($abs _item);

The above can only download local functions, if you want to download the remote we can do the following PHP remote download files to local functions

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Echo httpcopy ("/baidu_sylogo1.gif"); function Httpcopy ($url, $file = "", $timeout =60) { $file = Empty ($file)? PathInfo ($url, pathinfo_basename): $file; $dir = PathInfo ($file, pathinfo_dirname); !is_dir ($dir) && @mkdir ($dir, 0755,true); $url = Str_replace ("", "%20", $url); if (function_exists (' Curl_init ')) { $ch = Curl_init (); curl_setopt ($ch, Curlopt_url, $url); curl_setopt ($ch, Curlopt_timeout, $timeout); curl_setopt ($ch, Curlopt_returntransfer, TRUE); $temp = curl_exec ($ch); if (@file_put_contents ($file, $temp) &&!curl_error ($ch)) { return $file; } else { return false; } } else { $opts = Array ( "http" =>array ( "Method" = "GET", "Header" = "", "Timeout" = $timeout) ); $context = Stream_context_create ($opts); if (@copy ($url, $file, $context)) { $http _response_header return $file; } else { return false; } } } ?>

Finally share a class function that supports multiple file downloads

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/** * How to use: * require_once ' download.class.php '; * $filepath = './path/filename.html '; * $downname = ' downname.html '; * $down = new Download ($filepath, $downname); * OR * $down = new Download (); * * */ Class Download { var $filepath; var $downname; var $ErrInfo; var $is _attachment = false; var $_lang = Array ( ' Err ' = ' error ', ' Args_empty ' = ' parameter is wrong. ', ' file_not_exists ' \ = ' file does not exist! ', ' file_not_readable ' = ' file is unreadable! ', ); var $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/postscrīpt ', ' EPS ' = ' application/postscrīpt ', ' ps ' = ' application/postscrīpt ', ' 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.WMLSCRĪPTC ', ' 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-javascrīpt ', ' 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 ', ' wma ' = ' 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.wmlscrīpt ', ' 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 ', ' wmv ' = ' application/x-mplayer2 ', ' Ice ' = ' x-conference/x-cooltalk ', ); function Download ($filepath = ", $downname =") { if ($filepath = = "and! $this->filepath) { $this->errinfo = $this->_lang[' err '). ':' . $this->_lang[' Args_empty ']; return false; } if ($filepath = = ") $filepath = $this->filepath; if (!file_exists ($filepath)) { $this->errinfo = $this->_lang[' err '). ':' . $this->_lang[' file_not_exists ']; return false; } if ($downname = = "and! $this->downname) $downname = $filepath; if ($downname = = ") $downname = $this->downname; File name extension $FILEEXT = substr (STRRCHR ($filepath, '. '), 1); File type $fileType = $this->mimetypes[$fileExt]? $this->mimetypes[$fileExt]: ' Application/octet-stream '; Whether it is a picture $isImage = False; /* Description: getimagesize (), see Manual Description: Determine whether a file is an effective means of a picture, commonly used in file upload verification */ $imgInfo = @getimagesize ($filepath); if ($imgInfo [2] && $imgInfo [' bits ']) { $fileType = $imgInfo [' MIME ']; Support for non-standard extensions $isImage = True; } Display mode if ($this->is_attachment) { $attachment = ' attachment '; Specify the pop-up download dialog box } Else { $attachment = $isImage? ' Inline ': ' Attachment '; } Read file if (is_readable ($filepath)) { /* Description: Ob_end_clean () clear and close the output buffer, see manual Note: Turn off output buffering so that the content of the file fragment is sent out after it is read into memory, reducing resource consumption */ Ob_end_clean (); /* HTTP header information: Indicates that the client can receive a response that is not longer than the specified time (in seconds) */ Header (' cache-control:max-age=31536000 '); /* HTTP header information: Cache file Expiration time (Greenwich Mean Time) */ Header (' Expires: '. Gmdate (' d, D M Y h:i:s ', Time () +31536000). ' GMT '); /* HTTP header information: The time at which the file was last modified at the end of the service period Cache-control,expires,last-modified is the header information that controls the browser cache In some of the large access to the portal, reasonable settings cache to avoid excessive server requests, to some extent, alleviate the pressure of the server */ Header (' last-modified: '. Gmdate (' d, D M Y h:i:s ', Filemtime ($filepath). ' GMT ')); /* HTTP header information: Document encoding (Encode) method, because the file of the attachment request diversification, change the encoding method may corrupt the file, therefore is None */ Header (' Content-encoding:none '); /* HTTP header information: tells the browser which file type is currently requested. 1. Always specify as Application/octet-stream, which means that the file is a binary stream and always prompts for download. 2. Specify the corresponding type, such as the requested MP3 file, the corresponding MIME type is audio/mpeg, IE will automatically start Windows Media player to play. */ Header (' Content-type: '. $fileType); /* HTTP header information: If attachment, tells the browser to pop up the file Download dialog box when it is accessed and specify the default name of the file when it is saved (can be different from the server's file name) If you want the browser to display the content directly, specify as inline, slice, text */ Header (' content-disposition: '. $attachment. '; Filename= '. $downname); /* HTTP header information: Tell browser file length (ie download files when the file size information is not?) */ Header (' Content-length: '. FileSize ($filepath)); Open file (binary read-only mode) $fp = fopen ($filepath, ' RB '); Output file Fpassthru ($FP); Close File Fclose ($FP); return true; } Else { $this->errinfo = $this->_lang[' err '). ':' . $this->_lang[' file_not_readable ']; return false; } } } ?>

http://www.bkjia.com/PHPjc/631556.html www.bkjia.com true http://www.bkjia.com/PHPjc/631556.html techarticle Download the file in PHP we use the most is the direct use of the ReadFile () function, ReadFile () can be implemented to the server source files to download, let me introduce to you readfile download the file of the party ...

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