Php file download instance code

Php file download instance code

If you use php to implement forced file download, the header function is usually used. Example: PHP file download instance. Class Downfile { Function downserver ($ file_name ){ $ File_path = "./img/". $ file_name; // Transcode and convert the file name to gb2312 to solve Chinese garbled characters $ File_name = iconv ("UTF-8", "gb2312", $ file_name ); $ File_path = iconv ("UTF-8", "gb2312", $ file_path ); $ Fp = fopen ($ file_path, "r") or exit ("file does not exist "); // The definition variable is empty with the size of each download $ Buffer = 1024; // Get the file size $ File_size = filesize ($ file_path ); // Header ("Content-type: text/html; charset = gb2312 "); // Write the four http protocols used Header ("Content-type: application/octet-stream "); Header ("Accept-Ranges: bytes"); // can be ignored Header ("Content-Length:". $ file_size); // The original text is Accept-Length. this item is not found in the http protocol. Header ("Content-Disposition: attachment; filename =". $ file_name ); // Byte technician, which records the current number of bytes $ Count = 0; While (! Feof ($ fp) & $ file_size-$ count> 0 ){ // Read $ buffer size data every time from the file stream opened by $ fp $ File_data = fread ($ fp, $ buffer ); $ Count + = $ buffer; // Read the read data Echo $ file_data; } // Close the file stream Fclose ($ fp ); } } ?> Call this function to input a file name to download the file. pay attention to modifying $ file_path in the above code.