Create user in LDAP, authentication failed - php

Question

When creating the user I cannot start the section with the user's password. The user is created, but when testing the connection, it marks invalid credentials. Can you tell me where I am wrong? How should the password be encrypted?
$ds = '192.168.1.10';
$portldap = 389;
$ldap_username = 'CN=Administrador,CN=Users,DC=Local,DC=com';
$ldap_password = 'rootadm1';
$ldap_password_user = $ldap_password;
$ldap_connection = ldap_connect($ds, $portldap);
if($ldap_connection ){
// We have to set this option for the version of Active Directory we are using.
ldap_set_option($ldap_connection, LDAP_OPT_PROTOCOL_VERSION, 3) or die('Unable to set LDAP protocol version');
ldap_set_option($ldap_connection, LDAP_OPT_REFERRALS, 0); // We need this for doing an LDAP search.
$r = ldap_bind($ldap_connection, $ldap_username, $ldap_password);
if($r === TRUE){
$CN = htmlspecialchars($_POST["cn"]);
$ldaprecord['cn'] = $CN;
$ldaprecord['sAMAccountName'] = $_POST["sAMAccountName"]; //20caract
$ldaprecord['userPrincipalName'] = $_POST["userprincipalname"];
$ldaprecord["objectClass"][0] = "top";
$ldaprecord["objectClass"][1] = "person";
$ldaprecord["objectClass"][2] = "organizationalPerson";
$ldaprecord["objectClass"][3] = "user";
$ldaprecord['description']= $_POST["description"];
$ldaprecord["userAccountControl"][0] = "66656";
$ldap_new = 'CN='.$CN.',CN=Users,DC=Local,DC=com';
$result = ldap_add($ldap_connection, $ldap_new, $ldaprecord);
if($result) {
//Success creating user - Add password
$addPrecord['userPassword'] = '{MD5}' . base64_encode(pack('H*',md5($ldap_password_user)));
//$addPrecord["unicodePwd"][0] = iconv( 'UTF-8', 'UTF-16LE', $ldap_password_user );
$add_record= ldap_modify($ldap_connection, $ldap_new, $addPrecord);
if($add_record){
ldap_close($ldap_connection);
return $result;
}
else {
echo "LDAP Error: ".ldap_error($ldap_connection)."\n";
exit;
}
}
else {
echo "LDAP Error: ".ldap_error($ldap_connection)."\n";
exit;
}
}
}
else {
echo "cannot connect to LDAP server at $ds.";
} ```
[enter image description here][1]
[1]: https://i.stack.imgur.com/QOzqZ.png