static void Main(string[] args)
{
string filename = "zlibtest.gz";
string s = "Only a test, test, test, test, test, test, test, test!\n";
// open file for writing with maximum compression
PhpResource zp = Zlib.gzopen(new PhpBytes(filename), new PhpBytes("w9"));
// write string to file
Zlib.gzwrite(zp, new PhpBytes(s));
// close file
Zlib.gzclose(zp);
// open file for reading
zp = Zlib.gzopen(new PhpBytes(filename), new PhpBytes("r"));
// output contents of the file and close it
Console.WriteLine(Zlib.gzread(zp, 128));
Zlib.gzclose(zp);
Console.ReadLine();
}