How to make PHP MD5 and C # MD5 consistent?

There is the code for C # generation MD5 as follows:

   class CreateMD5    {        static void Main(string[] args)        {            string source = "提问指南";            using (MD5 md5Hash = MD5.Create())            {                string hash = GetMd5Hash(md5Hash, source);                Console.WriteLine( hash);            }        }            static string GetMd5Hash(MD5 md5Hash, string input)        {            //这里是 Unicode            byte[] data = md5Hash.ComputeHash(Encoding.Unicode.GetBytes(input));            StringBuilder sBuilder = new StringBuilder();            for (int i = 0; i < data.Length; i++)            {                sBuilder.Append(data[i].ToString("x2"));            }            return sBuilder.ToString();        }    }

The MD5 generated by the above code is F5DA53705563C657581A6D0853286FDC
The problem now is that the MD5 generated by C # is inconsistent with the MD5 generated by PHP

Because of business constraints, you cannot change C # code, only from PHP.

Reply content:

There is the code for C # generation MD5 as follows:

   class CreateMD5    {        static void Main(string[] args)        {            string source = "提问指南";            using (MD5 md5Hash = MD5.Create())            {                string hash = GetMd5Hash(md5Hash, source);                Console.WriteLine( hash);            }        }            static string GetMd5Hash(MD5 md5Hash, string input)        {            //这里是 Unicode            byte[] data = md5Hash.ComputeHash(Encoding.Unicode.GetBytes(input));            StringBuilder sBuilder = new StringBuilder();            for (int i = 0; i < data.Length; i++)            {                sBuilder.Append(data[i].ToString("x2"));            }            return sBuilder.ToString();        }    }

The MD5 generated by the above code is F5DA53705563C657581A6D0853286FDC
The problem now is that the MD5 generated by C # is inconsistent with the MD5 generated by PHP

Because of business constraints, you cannot change C # code, only from PHP.

MD5 one step before the operation

$tmp = mb_convert_encoding('提问指南', 'utf-16le', 'utf8');

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