Sometimes we in order to hide the real download address, we use the header definition as a file and then ReadFile download, but this will increase the burden on the server, generally not recommended to download a larger number of files
The code is as follows: = $lastModified) {header ("http/1.1 304 not Modified"); return true;} if (Isset ($_server[' http_if_unmodified_since ']) &am p;& strtotime ($_server[' http_if_unmodified_since ') < $lastModified) {header ("http/1.1 304 not Modified"); return true; } if (Isset ($_server[' Http_if_none_match ')) && $_server[' http_if_none_match '] = = $etag) {header ("http/1.1 304 Not Modified "); return true; if ($fancyName = = ") {$fancyName = basename ($fileName);} if ($contentType = =") {$contentType = ' application/octet- Stream '; } $fileSize = $fileStat [' Size ']; $contentLength = $fileSize; $isPartial = false; if (Isset ($_server[' Http_range ')) {if (Preg_match ('/^bytes= ' (d*)-(d*) $/', $_server[' Http_range '], $matches)) {$ startpos = $matches [1]; $endPos = $matches [2]; if ($startPos = = "&& $endPos = =") {return false;} if ($startPos = = ") {$startPos = $fileSize-$endPos; $e Ndpos = $fileSize-1; } else if ($endPos = = ") {$endPos = $fileSize-1;} $startPos = $startPos < 0? 0: $startPos; $endPos = $endPos > $fileSize-1? $fileSize-1: $endPos; $length = $endPos-$startPos + 1; if ($length < 0) {return false;} $contentLength = $length; $isPartial = true; }}//Send headers if ($isPartial) {header (' http/1.1 206 Partial Content '); header ("Content-range:bytes $startPos-$endP os/$fileSize "); } else {header ("http/1.1"), $startPos = 0; $endPos = $contentLength-1;} header (' Pragma:cache '); Header (' Cache-control:public, must-revalidate, max-age=0 '); Header (' accept-ranges:bytes '); Header (' Content-type: '. $contentType); Header (' Content-length: '. $contentLength); if ($forceDownload) {header (' content-disposition:attachment; Filename= '. Rawurlencode ($fancyName). ' "');//The Chinese character is automatically converted to the URL code header (' Content-disposition:attachment; Filename= "'. $fancyName. '"'); } Header ("Content-transfer-encoding:binary"); $bufferSize = 2048; if ($speedLimit! = 0) {$packetTime = Floor ($bufferSize * 1000000/$speedLimit);} $bytesSent = 0; $fp = fopen ($fiLename, "RB"); Fseek ($fp, $startPos); Fpassthru ($FP); while ($bytesSent < $contentLength &&!feof ($fp) && connection_status () = = 0) {if ($speedLimit! = 0) {List ($usec, $sec) = Explode ("", Microtime ()); $outputTimeStart = ((float) $usec + (float) $sec); } $readBufferSize = $contentLength-$bytesSent < $bufferSize? $contentLength-$bytesSent: $bufferSize; $buffer = Fread ($fp, $readBufferSize); Echo $buffer; Ob_flush (); Flush (); $bytesSent + = $readBufferSize; if ($speedLimit! = 0) {list ($usec, $sec) = Explode ("", Microtime ()); $outputTimeEnd = ((float) $usec + (float) $sec); $useTime = ((float) $outputTimeEnd-(float) $outputTimeStart) * 1000000; $sleepTime = Round ($packetTime-$useTime); if ($sleepTime > 0) {usleep ($sleepTime);}} } return true; The?> attached server responds to the type of HTTP ContentType Daquan: ". *" = "Application/octet-stream" ". 001" = "application/x-001" ". 301" = "application/ x-301 "". 323 "=" text/h323 "". 906 "=" application/x-906 "". 907 "=" drawing/907 "". A11 "=" Application/x-a11 "". ACP "=" AUDIO/X-MEI-AAC "". Ai "=" application/postscript "". AIF "=" Audio/aiff "". aifc "=" Audio/aiff "". Aiff "=" audio/ Aiff "". Anv "=" Application/x-anv "". Asa "=" Text/asa "". asf "=" video/x-ms-asf "". asp "=" text/asp "". asx "=" video/x-ms-asf ". Au" = "audio/basic" ". avi" = "Video/avi" ". Awf" = "Application/vnd.adobe.workflow" ". Biz" = "Text/xml" ". bmp" = " Application/x-bmp "". Bot "=" Application/x-bot "". c4t "=" application/x-c4t "". C90 "=" Application/x-c90 "". Cal "=" Application/x-cals "". Cat "=" Application/vnd.ms-pki.seccat "". CDF "=" APPLICATION/X-NETCDF "". Cdr "=" application/ X-cdr "". Cel "=" Application/x-cel "". cer "=" Application/x-x509-ca-cert "". Cg4 "=" Application/x-g4 "". CGM "=" APPLICATION/X-CGM "". cit "=" Application/x-cit "". Class "=" java/* "". CML "=" Text/xml "". cmp "=" application/x-cmp "". CMX " = "APPLICATION/X-CMX" ". Cot" = "Application/x-cot" ". CRL" = "application/pkix-crl" ". Crt" = "Application/x-x509-ca-cert" ". CSI" = "Application/x-csi" ". css" = "text/css" ". Cut" = "Application/x-cut" ". dbf" = "application/x-dbf" ". dbm" = " APPLICATION/X-DBM "". dbx "=" application/x-dbx "". DCD "=" Text/xml "". Dcx "=" Application/x-dcx "". Der "=" Application/x-x509-ca-cert "". DGN "=" APPLICATION/X-DGN "". Dib "=" Application/x-dib "". dll "=" Application/x-msdownload "". Doc "=" Application/msword "". Dot "=" Application/msword "". DRW "=" APPLICATION/X-DRW "". DTD "=" Text/xml "". DWF "=" MODEL/VND.DWF "". DWF "=" APPLICATION/X-DWF "". dwg "=" application/ X-dwg "". Dxb "=" APPLICATION/X-DXB "". DXF "=" application/x-dxf "". Edn "=" Application/vnd.adobe.edn "". EMF "=" Application/x-emf "". eml "=" message/rfc822 "". Ent "=" Text/xml "". Epi "=" Application/x-epi "". EPs "=" Application/x-ps "" . eps "=" Application/postscript "". etd "=" application/x-ebx "". exe "=" application/x-msdownload "". Fax "=" Image/fax "". FDF "=" Application/vnd.fdf "". Fif "=" Application/fractals "". Fo "=" text/xml "". frm "=" application/x-frm "". G4 "=" Application/x-g4 "". GBR "=" APPLICATION/X-GBR "". gcd "=" APPLICATION/X-GCD "". gif "=" image/gif "". Gl2 "=" application/ X-gl2 "". Gp4 "=" Application/x-gp4 "". Hgl "=" Application/x-hgl "". HMR "=" APPLICATION/X-HMR "". Hpg "=" APPLICATION/X-HPGL ". HPL" = "APPLICATION/X-HPL" ". hqx" = "APplication/mac-binhex40 "". Hrf "=" APPLICATION/X-HRF "". HTA "=" Application/hta "". HTC "=" text/x-component "". htm "=" Text/html "". html "=" text/html "". Htt "=" text/webviewhtml "". htx "=" text/html "". ICB "=" APPLICATION/X-ICB "". ico "=" Image/x-icon "". ico "=" Application/x-ico "". IFF "=" Application/x-iff "". Ig4 "=" Application/x-g4 "". IGs "=" application/ X-igs "". III "=" Application/x-iphone "". img "=" application/x-img "". Ins "=" Application/x-internet-signup "". ISP "=" Application/x-internet-signup "". IVF "=" VIDEO/X-IVF "". Java "=" java/* "". Jfif "=" Image/jpeg "". Jpe "=" Image/jpeg "". Jpe "=" Application/x-jpe "". jpeg "=" Image/jpeg "". jpg "=" image/jpeg "". jpg "=" application/x-jpg "". js "=" Application/x-javascript "". jsp "=" text/html "". La1 "=" Audio/x-liquid-file "". Lar "=" Application/x-laplayer-reg "". Latex "=" Application/x-latex "". LAVs "=" audio/ X-liquid-secure "". LBM "=" APPLICATION/X-LBM "". Lmsff "=" Audio/x-la-lms "". ls "=" application/x-javascript "". Ltr "=" Application/x-ltr "". m1v "=" Video/x-mpeg "". m2v "=" Video/x-mpeg "". m3u "=" Audio/mpegurl "". m4e "=" VIDEO/MPEG4 "". Mac "="Application/x-mac" ". Man" = "Application/x-troff-man" ". Math" = "Text/xml" ". mdb" = "application/msaccess" ". mdb" = " Application/x-mdb "". MFP "=" Application/x-shockwave-flash "". mht "=" message/rfc822 "". mhtml "=" message/rfc822 "". Mi "= "Application/x-mi" ". Mid" = "Audio/mid" ". Midi" = "Audio/mid" ". Mil" = "Application/x-mil" ". MML" = "Text/xml" ". MND" = " Audio/x-musicnet-download "". MNs "=" Audio/x-musicnet-stream "". Mocha "=" Application/x-javascript "". Movie "=" video/ X-sgi-movie "". Mp1 "=" Audio/mp1 "". Mp2 "=" AUDIO/MP2 "". mp2v "=" Video/mpeg "". mp3 "=" Audio/mp3 "". mp4 "=" VIDEO/MPEG4 "". MPA "=" Video/x-mpg "". MPD "=" Application/vnd.ms-project "". Mpe "=" Video/x-mpeg "". Mpeg "=" Video/mpg "". mpg "=" video/mpg ". MPGA" = "Audio/rn-mpeg" ". MPP" = "Application/vnd.ms-project" ". MPs" = "video/x-mpeg" ". MPT" = "application/ Vnd.ms-project "". MPV "=" Video/mpg "". Mpv2 "=" Video/mpeg "". MPW "=" Application/vnd.ms-project "". MPX "=" application/ Vnd.ms-project "". MTx "=" Text/xml "". MXP "=" APPLICATION/X-MMXP "". Net "=" Image/pnetvue "". NRF "=" APPLICATION/X-NRF "". NWS "=" message/rfc822 "". odc "=" text/X-ms-odc "". Out "=" Application/x-out "". P10 "=" Application/pkcs10 "". P12 "=" application/x-pkcs12 "". p7b "=" Application /x-pkcs7-certificates "". p7c "=" Application/pkcs7-mime "". p7m "=" Application/pkcs7-mime "". p7r "=" application/ X-pkcs7-certreqresp "". P7s "=" Application/pkcs7-signature "". Pc5 "=" APPLICATION/X-PC5 "". PCI "=" Application/x-pci "". PCL "=" APPLICATION/X-PCL "". pcx "=" application/x-pcx "". pdf "=" Application/pdf "". pdf "=" Application/pdf "". Pdx "=" Application/vnd.adobe.pdx "". pfx "=" application/x-pkcs12 "". PGL "=" APPLICATION/X-PGL "". Pic "=" Application/x-pic "". Pko "=" Application/vnd.ms-pki.pko "". pl "=" Application/x-perl "". PLG "=" text/html "". Pls "=" audio/scpls "". Plt "=" Application/x-plt "". png "=" image/png "". png "=" application/x-png "". Pot "=" application/vnd.ms-powerpoint "". PPA "=" Application/vnd.ms-powerpoint "". ppm "=" application/x-ppm "". pps "=" Application/vnd.ms-powerpoint "". ppt "=" Application/vnd.ms-powerpoint "". ppt "=" application/x-ppt "". PR "=" APPLICATION/X-PR "". PRF "=" application/pics-rules ". prn" = "application/x-prn" ". Prt" = "APplication/x-prt "". PS "=" Application/x-ps "". PS "=" Application/postscript "". Ptn "=" Application/x-ptn "". Pwz "=" Application/vnd.ms-powerpoint "". r3t "=" Text/vnd.rn-realtext3d "". Ra "=" Audio/vnd.rn-realaudio "". Ram "=" audio/ X-pn-realaudio "". Ras "=" Application/x-ras "". Rat "=" Application/rat-file "". RDF "=" Text/xml "". Rec "=" application/ Vnd.rn-recording "". Red "=" application/x-red "". RGB "=" Application/x-rgb "". RJs "=" Application/vnd.rn-realsystem-rjs ". Rjt" = "Application/vnd.rn-realsystem-rjt" ". RLC" = "APPLICATION/X-RLC" ". Rle" = "Application/x-rle" ". RM" = " Application/vnd.rn-realmedia "". Rmf "=" APPLICATION/VND.ADOBE.RMF "". Rmi "=" Audio/mid "". Rmj "=" application/ VND.RN-REALSYSTEM-RMJ "". RMM "=" Audio/x-pn-realaudio "". RMP "=" Application/vnd.rn-rn_music_package "". RMS "=" Application/vnd.rn-realmedia-secure "". rmvb "=" APPLICATION/VND.RN-REALMEDIA-VBR "". Rmx "=" application/ Vnd.rn-realsystem-rmx "". Rnx "=" Application/vnd.rn-realplayer "". RP "=" Image/vnd.rn-realpix "". RPM "=" audio/ X-pn-realaudio-plugin "". Rsml "=" APPLICATION/VND.RN-RSML "". RT "=" text/Vnd.rn-realtext ". rtf" = "Application/msword" ". rtf" = "Application/x-rtf" ". RV" = "Video/vnd.rn-realvideo" ". Sam" = " Application/x-sam "". Sat "=" Application/x-sat "". SDP "=" APPLICATION/SDP "". Sdw "=" Application/x-sdw "". Sit "=" Application/x-stuffit "". SLB "=" application/x-slb "". SLD "=" APPLICATION/X-SLD "". SLK "=" drawing/x-slk "". Smi "=" Application/smil "". Smil "=" Application/smil "". SMK "=" APPLICATION/X-SMK "". snd "=" Audio/basic "". Sol "=" Text/plain "". Sor "=" Text/plain "". SPC "=" application/x-pkcs7-certificates "". SPL "=" Application/futuresplash "". spp "=" Text/xml "". SSM "=" Application/streamingmedia "". SST "=" Application/vnd.ms-pki.certstore "". StL "=" Application/vnd.ms-pki.stl "" . stm "=" text/html "". Sty "=" Application/x-sty "". svg "=" text/xml "". swf "=" Application/x-shockwave-flash "". TDF "=" Application/x-tdf "". TG4 "=" APPLICATION/X-TG4 "". TGA "=" application/x-tga "". tif "=" Image/tiff "". tif "=" application/ X-tif "". Tiff "=" Image/tiff "". TLD "=" Text/xml "". Top "=" drawing/x-top "". Torrent "=" application/x-bittorrent "". TSD "=" Text/xml "". txt "=" Text/plain "". UIn "=" Application/x-icq "". Uls "=" Text/iuls "". vcf "=" Text/x-vcard "". Vda "=" Application/x-vda "". vdx "=" application/ Vnd.visio "". VML "=" Text/xml "". VPg "=" application/x-vpeg005 "". Vsd "=" Application/vnd.visio "". Vsd "=" application/ X-vsd "". vss "=" Application/vnd.visio "". vst "=" Application/vnd.visio "". vst "=" Application/x-vst "". Vsw "=" Application/vnd.visio "". Vsx "=" Application/vnd.visio "". vtx "=" Application/vnd.visio "". Vxml "=" Text/xml "". wav "=" Audio/wav "". Wax "=" audio/x-ms-wax "". Wb1 "=" application/x-wb1 "". Wb2 "=" application/x-wb2 "". Wb3 "=" application/x-wb3 ". Wbmp" = "Image/vnd.wap.wbmp" ". Wiz" = "Application/msword" ". Wk3" = "Application/x-wk3" ". Wk4" = "Application/x-wk4" ". Wkq "=" APPLICATION/X-WKQ "". Wks "=" Application/x-wks "". Wm "=" VIDEO/X-MS-WM "". wma "=" audio/x-ms-wma "". WMD "=" APPLICATION/X-MS-WMD "". Wmf "=" application/x-wmf "". WML "=" TEXT/VND.WAP.WML "". wmv "=" video/x-ms-wmv "". Wmx "=" video/ X-ms-wmx "". wmz "=" Application/x-ms-wmz "". Wp6 "=" Application/x-wp6 "". WPD "=" APPLICATION/X-WPD "". WPG "=" application/ X-WPG "". WPL "=" APPLICATION/VND.MS-WPL "". Wq1" = "application/x-wq1" ". Wr1" = "Application/x-wr1" ". Wri" = "Application/x-wri" ". Wrk" = "Application/x-wrk" ". ws" = "Application/x-ws" ". Ws2" = "Application/x-ws" ". WSC" = "Text/scriptlet" ". wsdl" = "Text/xml" ". wvx" = "video/x-ms-wvx" ". XDP "=" APPLICATION/VND.ADOBE.XDP "". XDR "=" Text/xml "". XfD "=" Application/vnd.adobe.xfd "". Xfdf "=" application/ Vnd.adobe.xfdf "". xhtml "=" text/html "". xls "=" application/vnd.ms-excel "". xls "=" Application/x-xls "". xlw "=" APPLICATION/X-XLW "". xml "=" Text/xml "". xPL "=" Audio/scpls "". Xq "=" Text/xml "". Xql "=" Text/xml "". XQuery "=" Text/xml "". xsd "=" text/xml "". xsl "=" Text/xml "". xslt "=" Text/xml "". Xwd "=" application/x-xwd "". X_b "=" Application/x-x_b "". x_t "=" application/x-x_t "
http://www.bkjia.com/PHPjc/730220.html www.bkjia.com true http://www.bkjia.com/PHPjc/730220.html techarticle sometimes we in order to hide the real download address, we use the header definition as a file and then ReadFile download, but this will increase the burden of the server, generally not recommended download volume comparison ...
