Added the following code to DatabaseConnection.cs

DatabaseConnectionAddition.cs

private const string GET_USER_URL = "http://localhost/GetUser.php?";
  
public void LogInAccount (string username, string password)
{
	StartCoroutine (PostLoginAccount (username, password));
}
  
IEnumerator PostLoginAccount (string username, string password)
{
	string postUrl = GET_USER_URL + "username=" + WWW.EscapeURL (username);
	WWW hsPost = new WWW (postUrl);

	yield return hsPost;

	if (hsPost.error != null)
	{
		Debug.Log ("Error: " + hsPost.error);
	}
	else
	{
		if (Crypto.Decrypt (hsPost.text).Equals (password))
		{
			Debug.Log ("Success! Correct password entered.");
		}
		else
		{
			Debug.Log ("Error! incorrect password entered.");
		}
	}
}