$VAR1 = {
          'firstname' => [
                           "\x{422}\x{430}\x{43c}\x{438}\x{440}"
                         ],
          'xmlns' => 'http://tempuri.org/',
          'photo' => [
                     'https://sisi.num.edu.mn/getstpic.ashx?id=1001004
+0666'
                   ],
          'lastname' => [
                          "\x{414}\x{443}\x{43b}\x{430}\x{43c}\x{446}\
+x{43e}\x{4
3e}"
                        ],
          'phones' => [
                      '94120465,99465510'
                    ],
          'usertype' => [
                        '1'
                      ],
          'program' => [
                       "\x{411}\x{438}\x{437}\x{43d}\x{435}\x{441}\x{4
+38}\x{439}
\x{43d} \x{441}\x{443}\x{440}\x{433}\x{443}\x{443}\x{43b}\x{438}\x{439
+}\x{43d} \
x{435}\x{440}\x{4e9}\x{43d}\x{445}\x{438}\x{439} \x{441}\x{443}\x{443}
+\x{440}\x{
44c} \x{445}\x{4e9}\x{442}\x{4e9}\x{43b}\x{431}\x{4e9}\x{440} (\x{411}
+\x{430}\x{
43a}\x{430}\x{43b}\x{430}\x{432}\x{440}\x{44b}\x{43d} \x{4e8}\x{434}\x
+{440}\x{43
8}\x{439}\x{43d} \x{441}\x{443}\x{440}\x{433}\x{430}\x{43b}\x{442} - -
+         )
"
                     ],
          'registerNr' => [
                          "\x{416}\x{42f}92101936          "
                        ],
          'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance',
          'abbrevm' => [
                       "\x{41c}\x{423}\x{418}\x{421}, \x{411}\x{441}"
                     ],
          'userStatus' => [
                          "\x{421}\x{443}\x{440}\x{433}\x{443}\x{443}\
+x{43b}\x{4
38}\x{430}\x{441} \x{447}\x{4e9}\x{43b}\x{4e9}\x{4e9}\x{43b}\x{4e9}\x{
+433}\x{434
}\x{441}\x{4e9}\x{43d} - \x{4e8}\x{4e9}\x{440}\x{438}\x{439}\x{43d} \x
+{445}\x{4a
f}\x{441}\x{44d}\x{43b}\x{442}\x{44d}\x{44d}\x{440}"
                        ],
          'sisiid' => [
                        '13B1SES2361'
                      ],
          'emails' => [
                      'sumiyad@yahoo.com, tamiraa1019@gmail.com'
                    ],
          'xmlns:xsd' => 'http://www.w3.org/2001/XMLSchema',
          'school' => [
                      "\x{411}\x{438}\x{437}\x{43d}\x{435}\x{441}\x{43
+8}\x{439}\
x{43d} \x{441}\x{443}\x{440}\x{433}\x{443}\x{443}\x{43b}\x{44c}"
                    ]
        };
[download]

<to_user_info>
    <photo>https://sisi.num.edu.mn/getstpic.ashx?id=10010040666</photo
+>
    <lastname>&#1044;&#1091;&#1083;&#1072;&#1084;&#1094;&#1086;&#1086;
+</lastname>
    <firstname>&#1058;&#1072;&#1084;&#1080;&#1088;</firstname>
    <sisiid>13B1SES2361</sisiid>
    <school>&#1041;&#1080;&#1079;&#1085;&#1077;&#1089;&#1080;&#1081;&#
+1085; &#1089;&#1091;&#1088;&#1075;&#1091;&#1091;&#1083;&#1100;</schoo
+l>
    <abbrevm>&#1052;&#1059;&#1048;&#1057;, &#1041;&#1089;</abbrevm>
    <program>&#1041;&#1080;&#1079;&#1085;&#1077;&#1089;&#1080;&#1081;&
+#1085; &#1089;&#1091;&#1088;&#1075;&#1091;&#1091;&#1083;&#1080;&#1081
+;&#1085; &#1077;&#1088;&#1257;&#1085;&#1093;&#1080;&#1081; &#1089;&#1
+091;&#1091;&#1088;&#1100; &#1093;&#1257;&#1090;&#1257;&#1083;&#1073;&
+#1257;&#1088; (&#1041;&#1072;&#1082;&#1072;&#1083;&#1072;&#1074;&#108
+8;&#1099;&#1085; &#1256;&#1076;&#1088;&#1080;&#1081;&#1085; &#1089;&#
+1091;&#1088;&#1075;&#1072;&#1083;&#1090; - -         )</program>
    <registerNr>&#1046;&#1071;92101936</registerNr>
    <phones>94120465,99465510</phones>
    <emails>sumiyad@yahoo.com, tamiraa1019@gmail.com</emails>
    <userStatus>&#1057;&#1091;&#1088;&#1075;&#1091;&#1091;&#1083;&#108
+0;&#1072;&#1089; &#1095;&#1257;&#1083;&#1257;&#1257;&#1083;&#1257;&#1
+075;&#1076;&#1089;&#1257;&#1085; - &#1256;&#1257;&#1088;&#1080;&#1081
+;&#1085; &#1093;&#1199;&#1089;&#1101;&#1083;&#1090;&#1101;&#1101;&#10
+88;</userStatus>
    <usertype>1</usertype>
</to_user_info>
[download]

So, now, do your $firstname and $lastname contain what you expect?

If they don't contain what you expect, please tell us what they contain.

If they contain what you expect, the error is either in your call to AddMember or it is in how you display/inspect the results after AddMember.

It gives me what I expect. But When I CallAddmember function.It add HASH to database.I think the problem is I cannot get real value of the HASH reference.