文章也很简单我们只要用利用head发送头部信息就能实现把文件下载到本地了,有直接发送header信息也有把文件保存在服务器上再用header来发送哦，有需要的朋友参考下。用的是表头方式下载,代码...
文章也很简单我们只要用利用head发送头部信息就能实现把文件下载到本地了,有直接发送header信息也有把文件保存在服务器上再用header来发送哦，有需要的朋友参考下。
用的是表头方式下载,代码如下:
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);
判断文件存在再下载代码如下：
pdf文件下载,代码如下：
下面讲讲header中的Content-type,不同的下载文件,对应不同的content-type,下面是大全：
{
&＃39;ez&＃39; => &＃39;application/andrew-inset&＃39;,
&＃39;hqx&＃39; => &＃39;application/mac-binhex40&＃39;,
&＃39;cpt&＃39; => &＃39;application/mac-compactpro&＃39;,
&＃39;doc&＃39; => &＃39;application/msword&＃39;,
&＃39;bin&＃39; => &＃39;application/octet-stream&＃39;,
&＃39;dms&＃39; => &＃39;application/octet-stream&＃39;,
&＃39;lha&＃39; => &＃39;application/octet-stream&＃39;,
&＃39;lzh&＃39; => &＃39;application/octet-stream&＃39;,
&＃39;exe&＃39; => &＃39;application/octet-stream&＃39;,
&＃39;class&＃39; => &＃39;application/octet-stream&＃39;,
&＃39;so&＃39; => &＃39;application/octet-stream&＃39;,
&＃39;dll&＃39; => &＃39;application/octet-stream&＃39;,
&＃39;oda&＃39; => &＃39;application/oda&＃39;,
&＃39;pdf&＃39; => &＃39;application/pdf&＃39;,
&＃39;ai&＃39; => &＃39;application/postscript&＃39;,
&＃39;eps&＃39; => &＃39;application/postscript&＃39;,
&＃39;ps&＃39; => &＃39;application/postscript&＃39;,
&＃39;smi&＃39; => &＃39;application/smil&＃39;,
&＃39;smil&＃39; => &＃39;application/smil&＃39;,
&＃39;mif&＃39; => &＃39;application/vnd.mif&＃39;,
&＃39;xls&＃39; => &＃39;application/vnd.ms-excel&＃39;,
&＃39;ppt&＃39; => &＃39;application/vnd.ms-powerpoint&＃39;,
&＃39;wbxml&＃39; => &＃39;application/vnd.wap.wbxml&＃39;,
&＃39;wmlc&＃39; => &＃39;application/vnd.wap.wmlc&＃39;,
&＃39;wmlsc&＃39; => &＃39;application/vnd.wap.wmlscriptc&＃39;,
&＃39;bcpio&＃39; => &＃39;application/x-bcpio&＃39;,
&＃39;vcd&＃39; => &＃39;application/x-cdlink&＃39;,
&＃39;pgn&＃39; => &＃39;application/x-chess-pgn&＃39;,
&＃39;cpio&＃39; => &＃39;application/x-cpio&＃39;,
&＃39;csh&＃39; => &＃39;application/x-csh&＃39;,
&＃39;dcr&＃39; => &＃39;application/x-director&＃39;,
&＃39;dir&＃39; => &＃39;application/x-director&＃39;,
&＃39;dxr&＃39; => &＃39;application/x-director&＃39;,
&＃39;dvi&＃39; => &＃39;application/x-dvi&＃39;,
&＃39;spl&＃39; => &＃39;application/x-futuresplash&＃39;,
&＃39;gtar&＃39; => &＃39;application/x-gtar&＃39;,
&＃39;hdf&＃39; => &＃39;application/x-hdf&＃39;,
&＃39;js&＃39; => &＃39;application/x-Javascript&＃39;,
&＃39;skp&＃39; => &＃39;application/x-koan&＃39;,
&＃39;skd&＃39; => &＃39;application/x-koan&＃39;,
&＃39;skt&＃39; => &＃39;application/x-koan&＃39;,
&＃39;skm&＃39; => &＃39;application/x-koan&＃39;,
&＃39;latex&＃39; => &＃39;application/x-latex&＃39;,
&＃39;nc&＃39; => &＃39;application/x-netcdf&＃39;,
&＃39;cdf&＃39; => &＃39;application/x-netcdf&＃39;,
&＃39;sh&＃39; => &＃39;application/x-sh&＃39;,
&＃39;shar&＃39; => &＃39;application/x-shar&＃39;,
&＃39;swf&＃39; => &＃39;application/x-shockwave-flash&＃39;,
&＃39;sit&＃39; => &＃39;application/x-stuffit&＃39;,
&＃39;sv4cpio&＃39; => &＃39;application/x-sv4cpio&＃39;,
&＃39;sv4crc&＃39; => &＃39;application/x-sv4crc&＃39;,
&＃39;tar&＃39; => &＃39;application/x-tar&＃39;,
&＃39;tcl&＃39; => &＃39;application/x-tcl&＃39;,
&＃39;tex&＃39; => &＃39;application/x-tex&＃39;,
&＃39;texinfo&＃39; => &＃39;application/x-texinfo&＃39;,
&＃39;texi&＃39; => &＃39;application/x-texinfo&＃39;,
&＃39;t&＃39; => &＃39;application/x-troff&＃39;,
&＃39;tr&＃39; => &＃39;application/x-troff&＃39;,
&＃39;roff&＃39; => &＃39;application/x-troff&＃39;,
&＃39;man&＃39; => &＃39;application/x-troff-man&＃39;,
&＃39;me&＃39; => &＃39;application/x-troff-me&＃39;,
&＃39;ms&＃39; => &＃39;application/x-troff-ms&＃39;,
&＃39;ustar&＃39; => &＃39;application/x-ustar&＃39;,
&＃39;src&＃39; => &＃39;application/x-wais-source&＃39;,
&＃39;xhtml&＃39; => &＃39;application/xhtml+xml&＃39;,
&＃39;xht&＃39; => &＃39;application/xhtml+xml&＃39;,
&＃39;zip&＃39; => &＃39;application/zip&＃39;,
&＃39;au&＃39; => &＃39;audio/basic&＃39;,
&＃39;snd&＃39; => &＃39;audio/basic&＃39;,
&＃39;mid&＃39; => &＃39;audio/midi&＃39;,
&＃39;midi&＃39; => &＃39;audio/midi&＃39;,
&＃39;kar&＃39; => &＃39;audio/midi&＃39;,
&＃39;mpga&＃39; => &＃39;audio/mpeg&＃39;,
&＃39;mp2&＃39; => &＃39;audio/mpeg&＃39;,
&＃39;mp3&＃39; => &＃39;audio/mpeg&＃39;,
&＃39;aif&＃39; => &＃39;audio/x-aiff&＃39;,
&＃39;aiff&＃39; => &＃39;audio/x-aiff&＃39;,
&＃39;aifc&＃39; => &＃39;audio/x-aiff&＃39;,
&＃39;m3u&＃39; => &＃39;audio/x-mpegurl&＃39;,
&＃39;ram&＃39; => &＃39;audio/x-pn-realaudio&＃39;,
&＃39;rm&＃39; => &＃39;audio/x-pn-realaudio&＃39;,
&＃39;rpm&＃39; => &＃39;audio/x-pn-realaudio-plugin&＃39;,
&＃39;ra&＃39; => &＃39;audio/x-realaudio&＃39;,
&＃39;wav&＃39; => &＃39;audio/x-wav&＃39;,
&＃39;pdb&＃39; => &＃39;chemical/x-pdb&＃39;,
&＃39;xyz&＃39; => &＃39;chemical/x-xyz&＃39;,
&＃39;bmp&＃39; => &＃39;image/bmp&＃39;,
&＃39;gif&＃39; => &＃39;image/gif&＃39;,
&＃39;ief&＃39; => &＃39;image/ief&＃39;,
&＃39;jpeg&＃39; => &＃39;image/jpeg&＃39;,
&＃39;jpg&＃39; => &＃39;image/jpeg&＃39;,
&＃39;jpe&＃39; => &＃39;image/jpeg&＃39;,
&＃39;png&＃39; => &＃39;image/png&＃39;,
&＃39;tiff&＃39; => &＃39;image/tiff&＃39;,
&＃39;tif&＃39; => &＃39;image/tiff&＃39;,
&＃39;djvu&＃39; => &＃39;image/vnd.djvu&＃39;,
&＃39;djv&＃39; => &＃39;image/vnd.djvu&＃39;,
&＃39;wbmp&＃39; => &＃39;image/vnd.wap.wbmp&＃39;,
&＃39;ras&＃39; => &＃39;image/x-cmu-raster&＃39;,
&＃39;pnm&＃39; => &＃39;image/x-portable-anymap&＃39;,
&＃39;pbm&＃39; => &＃39;image/x-portable-bitmap&＃39;,
&＃39;pgm&＃39; => &＃39;image/x-portable-graymap&＃39;,
&＃39;ppm&＃39; => &＃39;image/x-portable-pixmap&＃39;,
&＃39;rgb&＃39; => &＃39;image/x-rgb&＃39;,
&＃39;xbm&＃39; => &＃39;image/x-xbitmap&＃39;,
&＃39;xpm&＃39; => &＃39;image/x-xpixmap&＃39;,
&＃39;xwd&＃39; => &＃39;image/x-xwindowdump&＃39;,
&＃39;igs&＃39; => &＃39;model/iges&＃39;,
&＃39;iges&＃39; => &＃39;model/iges&＃39;,
&＃39;msh&＃39; => &＃39;model/mesh&＃39;,
&＃39;mesh&＃39; => &＃39;model/mesh&＃39;,
&＃39;silo&＃39; => &＃39;model/mesh&＃39;,
&＃39;wrl&＃39; => &＃39;model/vrml&＃39;,
&＃39;vrml&＃39; => &＃39;model/vrml&＃39;,
&＃39;css&＃39; => &＃39;text/css&＃39;,
&＃39;html&＃39; => &＃39;text/html&＃39;,
&＃39;htm&＃39; => &＃39;text/html&＃39;,
&＃39;asc&＃39; => &＃39;text/plain&＃39;,
&＃39;txt&＃39; => &＃39;text/plain&＃39;,
&＃39;rtx&＃39; => &＃39;text/richtext&＃39;,
&＃39;rtf&＃39; => &＃39;text/rtf&＃39;,
&＃39;sgml&＃39; => &＃39;text/sgml&＃39;,
&＃39;sgm&＃39; => &＃39;text/sgml&＃39;,
&＃39;tsv&＃39; => &＃39;text/tab-separated-values&＃39;,
&＃39;wml&＃39; => &＃39;text/vnd.wap.wml&＃39;,
&＃39;wmls&＃39; => &＃39;text/vnd.wap.wmlscript&＃39;,
&＃39;etx&＃39; => &＃39;text/x-setext&＃39;,
&＃39;xsl&＃39; => &＃39;text/xml&＃39;,
&＃39;xml&＃39; => &＃39;text/xml&＃39;,
&＃39;mpeg&＃39; => &＃39;video/mpeg&＃39;,
&＃39;mpg&＃39; => &＃39;video/mpeg&＃39;,
&＃39;mpe&＃39; => &＃39;video/mpeg&＃39;,
&＃39;qt&＃39; => &＃39;video/quicktime&＃39;,
&＃39;mov&＃39; => &＃39;video/quicktime&＃39;,
&＃39;mxu&＃39; => &＃39;video/vnd.mpegurl&＃39;,
&＃39;avi&＃39; => &＃39;video/x-msvideo&＃39;,
&＃39;movie&＃39; => &＃39;video/x-sgi-movie&＃39;,
&＃39;ice&＃39; => &＃39;x-conference/x-cooltalk&＃39;,
}
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