About PHP support block and breakpoint continuation file download function code _php Tutorial

This article is to introduce this article is an article on the PHP stream download, that is, you can support the block and the continuation of the breakpoint file downloads, there is a need for friends to see. The code is as follows
Copy CodeThe code is as follows:
$dowmFile = DirName (__file__). '/nokia–always here.mp3′; Files to be downloaded, absolute or relative
$dowmName = ' Nokia–always here.mp3′;
Ob_start ();
Getlocalfile ($dowmFile, $dowmName);
Flush ();
Ob_flush ();
function Getlocalfile ($fname, $filename = ") {
$fsize = FileSize ($fname);
Header (' Cache-control:public ');
Header (' Pragma:public ');
Header (' accept-ranges:bytes ');
Header (' Connection:close ');
Header (' Content-type: '. MIMEType ($fname));
Header (' Content-type:application/octet-stream ');
if (isset ($filename {0})) {
Header (' content-disposition:attachment;filename= '. $filename);
}
if ($fp = @fopen ($fname, ' RB ')) {
$start = 0;
$end = $fsize;
$isRange = Isset ($_server [' Http_range ']) && ($_server [' http_range ']! = ");
if ($isRange) {
Preg_match ('/^bytes= ([0-9]*)-([0-9]*] $/i ', $_server [' Http_range '], $match);
$start = $match [1];
$end = $match [2];
$isset _start = isset ($start {0});
$isset _end = isset ($end {0});
if ($isset _start && $isset _end) {
Sub-block Download
if ($start >= $fsize | | $start < 0 | | $start > $end) {
$start = 0;
$end = $fsize;
} else if ($end >= $fsize) {
$end = $fsize – $start;
} else {
$end-= $start –1;
}
} else if ($isset _start &&! $isset _end) {
Specify position to end
if ($start >= $fsize | | $start < 0) {
$start = 0;
$end = $fsize;
} else {
$end = $fsize – $start;
}
} else if (! $isset _start && $isset _end) {
Last N bytes
$end = $end > $fsize? $fsize: $end;
$start = $fsize – $end;
} else {
$start = 0;
$end = $fsize;
}
}
if ($isRange) {
Fseek ($fp, $start);
Header (' http/1.1 206 Partial Content ');
Header (' Content-length: '. $end);
Header (' Content-ranges:bytes '. $start. ‘-' . ($end + $start – 1). ‘/' . $fsize);
} else {
Header (' Content-length: '. $fsize);
}
if (function_exists (' Fpassthru ') && ($end + $start) = = $fsize) {
Fpassthru ($FP);
} else {
Echo fread ($fp, $end);
}
} else {
Header (' Content-length: '. $fsize);
ReadFile ($fname);
}
@header ("Content-type:". Mime_content_type ($fname));
}
function MIMEType ($fname) {
$fileSuffix = Strtolower (substr ($fname, Strrpos ($fname, '. ') + 1));
Switch ($fileSuffix) {
Case ' avi ':
Return ' Video/msvideo ';
Case ' WMV ':
Return ' video/x-ms-wmv ';
Case ' txt ':
Return ' Text/plain ';
Case ' htm ':
Case ' HTML ':
Case ' PHP ':
Return ' text/html ';
Case ' CSS ':
Return ' text/css ';
Case ' JS ':
Return ' Application/javascript ';
Case ' JSON ':
Case ' XML ':
Case ' Zip ':
Case ' PDF ':
Case ' RTF ':
Case ' tar ':
Return ' application/'. $fileSuffix;
Case ' SWF ':
Return ' Application/x-shockwave-flash ';
Case ' flv ':
Return ' video/x-flv ';
Case ' JPE ':
Case ' jpg ':
Return ' Image/jpeg ';
Case ' JPEG ':
Case ' PNG ':
Case ' gif ':
Case ' BMP ':
Case ' TIFF ':
Return ' image/'. $fileSuffix;
Case ' ico ':
Return ' Image/vnd.microsoft.icon ';
Case ' TIF ':
Return ' Image/tiff ';
Case ' svg ':
Case ' Svgz ':
Return ' Image/svg+xml ';
Case ' rar ':
Return ' application/x-rar-compressed ';
Case ' EXE ':
Case ' MSI ':
Return ' application/x-msdownload ';
Case ' cab ':
Return ' application/vnd.ms-cab-compressed ';
Case ' AIF ':
Return ' Audio/aiff ';
Case ' mpg ':
Case ' MPE ':
Case ' mp3′:
Return ' Audio/mpeg ';
Case ' MPEG ':
Case ' wav ':
Case ' AIFF ':
Return ' audio/'. $fileSuffix;
Case ' QT ':
Case ' mov ':
Return ' Video/quicktime ';
Case ' PSD ':
Return ' Image/vnd.adobe.photoshop ';
Case ' AI ':
Case ' EPS ':
Case ' PS ':
Return ' Application/postscript ';
Case ' Doc ':
Case ' docx ':
Return ' Application/msword ';
Case ' xls ':
Case ' XLT ':
Case ' XLM ':
Case ' XLD ':
Case ' XLA ':
Case ' XLC ':
Case ' XLW ':
Case ' XLL ':
Return ' application/vnd.ms-excel ';
Case ' ppt ':
Case ' PPS ':
Return ' Application/vnd.ms-powerpoint ';
Case ' ODT ':
Return ' Application/vnd.oasis.opendocument.text ';
Case ' ODS ':
Return ' Application/vnd.oasis.opendocument.spreadsheet ';
Default:
if (function_exists (' Mime_content_type ')) {
$fileSuffix = Mime_content_type ($filename);
} else {
$fileSuffix = ' Application/octet-stream ';
}
return $fileSuffix;
Break
}
}

http://www.bkjia.com/PHPjc/767611.html www.bkjia.com true http://www.bkjia.com/PHPjc/767611.html techarticle This article is to introduce this article is an article on the PHP stream download, that is, you can support the block and the continuation of the breakpoint file downloads, there is a need for friends to see. Code as follows to copy code code such as ...

