php method to insert mysql data to return id

<?php
$dbh = mysql_connect('localhost','root','root');
mysql_select_db('pkbk');
$query = "insert intov9_admin_role_priv(roleid, m, c, a, `data`, siteid) values (12, 'huiben','huiben', 'hbprop_add', '', 1)";
$res = mysql_query($query, $dbh);
//"Get the id just inserted, the table needs to be set to increase the primary key"echo "ID of last inserted record is: " .mysql_insert_id();
$query = "select max(roleid) fromv9_admin_role_priv";
$res = mysql_query($query, $dbh);
$err = mysql_error();
if($err){
  echo "An error occurred, please notify the administrator";
}
$row = mysql_fetch_row($res);
echo "The number you use in the future is:".$row[0];
?>

 $query = " INSERT INTOpkbk.v9_member (phpssouid, username, password, encrypt, nickname, regdate,lastdate, regip, lastip, loginnum, biaoshi, planid, email, groupid, areaid,amount, point, modelid, message, islock, vip, overduedate, siteid, connectid,`from`, mobile, yey, yeybj, sleeptime, waketime, cardno, zentime, zencount,is_js, bsount)".
"VALUES (1, 'lbg','9f575f22246a1a5fb38e1846bb0ec964', 'pTseba', '', 1384397338, 1403544894,'221.199.6.231', '118.112.20.103', 0, '', 0, 'nxnet123@', 2, 0, 0, 0, 10,0, 0, 0, 0, 1, 'A74EECDFA5A22C81C05ED49E7CF9224D', 'qq', '', '', '', 0, 0, '',0, 0, 0, 0)";
    $number=$mydb->sql_query($query);
    echo "ID of last inserted recordis: ".mysql_insert_id();