ldap_mod_replace

(PHP 4, PHP 5, PHP 7, PHP 8)

ldap_mod_replace — Replace attribute values with new ones

Descrição

ldap_mod_replace(
    LDAP\Connection $ldap,
    string $dn,
    array $entry,
    ?array $controls = null
): bool

Replaces one or more attributes from the specified dn. It may also add or remove attributes.

Parâmetros

ldap: Uma instância de LDAP\Connection, retornada por ldap_connect().
dn: The distinguished name of an LDAP entity.
entry: An associative array listing the attributes to replace. Sending an empty array as value will remove the attribute, while sending an attribute not existing yet on this entry will add it.
controls: Array of LDAP Controls to send with the request.

Valor Retornado

Retorna true em caso de sucesso ou false em caso de falha.

Registro de Alterações

Versão	Descrição
8.1.0	O parâmetro `ldap` agora espera uma instância de LDAP\Connection; anteriormente, um resource `ldap link` válido era esperado.
8.0.0	O parâmetro `controls` agora pode ser nulo; anteriormente, o padrão era `[]`.
7.3.0	Support for `controls` added

Notas

Nota: Esta função é compatível com dados binários.

Veja Também

ldap_mod_replace_ext() - Replace attribute values with new ones
ldap_mod_del() - Delete attribute values from current attributes
ldap_mod_add() - Add attribute values to current attributes
ldap_modify_batch() - Batch and execute modifications on an LDAP entry

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User Contributed Notes 14 notes

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chris at mr2madness dot com ¶

17 years ago


You can use arrays for multiple attributes example:



<?php

$entry[mail] = array("example@example.com","example2@example.com");

$results = ldap_mod_add($ldapConnID,$dn, $entry);

?>

or as i did for creating anew user:

<?php

$adduserAD["objectClass"] = array("top","person","organizationalPerson","user");

?>

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mike dot rosile at interzonegames dot com ¶

17 years ago


Here is some great information from the OpenLDAP FAQs regarding changing a userPassword attribute with PHP:

http://www.openldap.org/faq/data/cache/347.html

$userpassword = "{SHA}" . base64_encode( pack( "H*", sha1( $pass ) ) );

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Anonymous ¶

12 years ago


this can not be used to change a password on an AD server that requires you to send the old and new password.

in order to do this use on shuts an sever make an admin-account that allows to change other ppl pw without suppling the old password first.

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JoshuaStarr at aelana dot com ¶

23 years ago


To modify an attribute with a single value: 

  $entry[mail] = "newmail@aelana.com"; 

  $results = ldap_mod_add($ldapConnID,$dn, $entry); 



To modify an attribute with multiple values: 

  $entry[mail][] = "newmail@aelana.com"; 

  $entry[mail][] = "altnewmail@aelana.com"; 

  $results = ldap_mod_add($ldapConnID,$dn, $entry);



To modify multiple attributes

  $entry[mail][] = "newmail@aelana.com"; 

  $entry[mail][] = "altnewmail@aelana.com"; 

  $entry[c]      = "US";

  $results = ldap_mod_add($ldapConnID,$dn, $entry);

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frederic dot jacquot at insa-lyon dot fr ¶

20 years ago


Changing a user password in Active Directory.
Securely connect (using ldaps) to the Active Directory and bind using an administrator account.

In this example, $userDn contains the dn of the user I want to modify, and $ad is the Active Directory ldaps connection)

$newPassword = "MyPassword";
$newPassword = "\"" . $newPassword . "\"";
$len = strlen($newPassword);
for ($i = 0; $i < $len; $i++)
        $newPassw .= "{$newPassword{$i}}\000";
$newPassword = $newPassw;
$userdata["unicodepwd"] = $newPassword;
$result = ldap_mod_replace($ad, $userDn, $userdata);
if ($result) echo "User modified!" ;
else echo "There was a problem!";

I found it hard to get a proper encoding for the unicodepwd attribute so this piece of code might help you ;-)

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ondrej at sury dot cz ¶

22 years ago


in openldap 2.0.x you can use method with mod_del/mod_add only if the attribute have defined EQUALITY rule.

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dynamik ¶

11 years ago


Using this function to 'replace' an Active Directory password requires the "Reset Password" security permission as opposed to the "Change Password" permission (which is assigned by default to SELF)

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oyvindmo at initio dot no ¶

23 years ago


ldap_mod_replace() and ldap_modify() are _exactly_ the same.  So, the comment that ldap_mod_replace() "performs the modification at the attribute level as opposed to the object level", has no root in reality.

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-1

aaronfulton at softhome dot net ¶

17 years ago


Before you modify values in your ldap directory, first make sure that you have permission to do so.  In openldap adding the following acl in slap.conf will allow the user to modify their own userpassword.

access to attr=userPassword
        by self write
        by anonymous auth
        by * none

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-1

yife at myrice-ltd dot com ¶

24 years ago


if i want to replace the special attribute but i don't replace other attribute ,i just use "ldap_mod_del" and "ldap_mod_add" ,the function seems to that

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-2

erwann at zeflip dot com ¶

18 years ago


If you do not wish to set up SSL on your active directory, and you are running on Windows, you can use COM and ADSI to set the new password for a user, or to active a user:

<?PHP
// to set a user password
  // server is the ldap server
  // newuser_dn is the full dn of the user you want to modify
  // newuser_password is the password you wish to set for the user

    $ADSI = new COM("LDAP:");
    $user = $ADSI->OpenDSObject("LDAP://".$server."/".$newuser_dn, $adminuser, $adminpassword, 1);
    $user->SetPassword($newuser_password);
    $user->SetInfo();

// to activate a user
    $ADSI = new COM("LDAP:");
    $user = $ADSI->OpenDSObject("LDAP://".$server."/".$newuser_dn, $adminuser, $adminpassword, 1);
    $user->AccountDisabled = false;
    $user->SetInfo();

?>

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-1

plex909 ¶

16 years ago


Here's an easy way to encode AD "unicodepwd" values from linux... 



Download and install recode... 

http://www.gnu.org/software/recode/recode.html



Then write something like this...

<?php

function ADUnicodePwdValue($plain_txt_value)

{

    return str_replace("\n", "", shell_exec("echo -n '\"" . $plain_txt_value . "\"' | recode latin1..utf-16le/base64"));

}



$user["unicodepwd"] = ADUnicodePwdValue("my_password");



?>



[EDITOR thiago NOTE: The following text was sent by boyvanderlaak at gmail dot com as an important complement]



if you do not have access to your linux box but have Multibyte String enabled you could try the following for AD 2008:



<?php

$info["unicodePwd"] = mb_convert_encoding('"' . $newPassword . '"', 'utf-16le');

?>

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-2

Anonymous ¶

22 years ago


Sometime,we cannot replace ldap_mod_replace  function  with ldap_mod_del function and ldap_mod_add fuction .We  don't have permission to delete an attribute but  we can replace it.

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-2

giodev at panozzo dot it ¶

4 years ago


An bettter method to create the unicodePwd Active Directory LDAP field from PHP is:

$unicodePwd = iconv("UTF-8", "UTF-16LE", "\"".$password."\"");

It works when $password is coming from a UTF-8 page. If your $password is not utf-8, change the 1st parameter of iconv.

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