Php file downloads

Php implements file downloads. PHP implements file downloads using code. For more information, see PHP code. generally, URLs are called to download files, however, this method cannot be used when ie can recognize opened files, such as downloading an image or html webpage. in this case, programming is required. the following php code can solve this problem :? If (empty ($ _ GET [we generally call URLs for download, but this method cannot be used when ie can identify opened files, for example, to download an image or html webpage, you need to program it. the following php code can be used:
The code is as follows:
If (empty ($ _ GET ['filename']) | empty ($ _ GET ['filedir']) | empty ($ _ GET ['fileid']) {
Echo 'script alert ("illegal connection! "); Location. replace (" index. php ") script '; exit ();
}
$ File_name = $ _ GET ['filename'];
$ File_dir = $ _ GET ['filedir'];
$ FileId = $ _ GET ['fileid'];
$ File_dir = $ file_dir ."/";
If (! File_exists ($ file_dir. $ file_name) {// check whether the file exists
Echo "file not found ";
Exit;
} Else {
$ File = fopen ($ file_dir. $ file_name, "r"); // open the file
// Input file tag
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 );
// Output file content
Echo fread ($ file, filesize ($ file_dir. $ file_name ));
Fclose ($ file );
Exit ();
}
?>