PHP uses code to download files

Source: Internet
Author: User
PHP uses code to download files. when reading PHP code to download files, we generally call URLs to download files. However, this method is not available when ie can identify files opened, for example, to download an image or html webpage, you need to program it. the following php code can be used :? If (empty ($ _ GET ["> <LINKhref =" http: // www. PHP is generally implemented by calling URLs for download, but this method is not available when ie can identify opened files, such as downloading an image or html webpage, in this case, programming is required. the following php code can be used:
 
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 ();
}
?>

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