int readgzfile(string filename);Reads a file, decompresses it and writes it to standard output.
Returns the number of (uncompressed) bytes read from the file. If an error occurs, false is returned and unless the function was called as @readgzfile, an error message is printed.
The file filename will be opened from the filesystem and its contents written to standard output.
See also gzpassthru(), gzfile(), and gzopen().