MD5 .net与PHP加密值一样的加密代码

.net 代码

using System.Security.Cryptography;

/// <summary>
        /// 返回大写形式的MD5加密
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public string Md5Upper(string input)
        {
            MD5 md5Hasher = MD5.Create();
            byte[] data = md5Hasher.ComputeHash(Encoding.UTF8.GetBytes(input));
            StringBuilder sBuilder = new StringBuilder();
            for (int i = ; i < data.Length; i++)
            {
                sBuilder.Append(data[i].ToString("x2"));
            }
            return sBuilder.ToString().ToUpper();
        }