Php supports code for multipart and resumable download. This article introduces php stream download, which supports multipart and resumable Download. if you need it, you can check it. The code is as follows: Copy the code $ dow this article will introduce this article is an article about php stream download, which supports multipart and resumable download of files. if you need it, you can check it out.
| The code is as follows: |
|
$ DowmFile = dirname (_ FILE _). '/Nokia-Always Here.mp3'; // the object to be downloaded, either 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 ){
// Multipart 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 the 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 'Av ':
Return 'video/msvideo ';
Case 'vps ':
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;
}
} |
Bytes. The code is as follows $ dow...
