C# SHA-1 vs. PHP SHA-1…Different Results?

Question

I am trying to calculate a SHA-1 Hash from a string, but when I calculate the string using php\'s sha1 function I get something different than when I try it in C#. I need C#

Answer 1

This method in .NET is equivalent to sha1 in php:

string sha1Hash(string password)
{
    return string.Join("", SHA1CryptoServiceProvider.Create().ComputeHash(Encoding.UTF8.GetBytes(password)).Select(x => x.ToString("x2")));
}