International PHP Conference Berlin 2023

ldap_mod_replace

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

ldap_mod_replaceErsetzt Merkmalswerte durch neue Merkmalswerte

Beschreibung

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

Ersetzt ein oder mehrere Merkmale des angegeben dn. Es können auch Merkmale hinzugefügt oder gelöscht werden.

Parameter-Liste

ldap

Eine LDAP\ConnectionInstanz, die von ldap_connect() zurückgegeben wurde.

dn

Der Distinguished Name eines LDAP-Datenobjekts.

entry

Ein assoziatives Array, das die zu ersetzenden Merkmale aufführt. Die Übergabe eines leeren Arrays als Wert entfernt das Merkmal, während das Übergeben eines noch nicht existierenden Merkmals dieses hinzufügt.

controls

Ein Array von LDAP-Steuerbefehlen, die mit der Anfrage versendet werden sollen.

Rückgabewerte

Gibt bei Erfolg true zurück. Bei einem Fehler wird false zurückgegeben.

Changelog

Version Beschreibung
8.1.0 Der Parameter ldap erwartet nun eine LDAP\Connection-Instanz; vorher wurde eine Ressource erwartet.
8.0.0 controls ist nun nullable (akzeptiert den null-Wert); vorher war der Standardwert [].
7.3.0 Die Unterstützung für controls wurde hinzugefügt.

Anmerkungen

Hinweis: Diese Funktion ist binärsicher.

Siehe auch

add a note

User Contributed Notes 14 notes

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12
chris at mr2madness dot com
15 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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2
mike dot rosile at interzonegames dot com
15 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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1
Anonymous
10 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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1
JoshuaStarr at aelana dot com
21 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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1
ondrej at sury dot cz
20 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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0
dynamik
9 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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0
frederic dot jacquot at insa-lyon dot fr
18 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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0
oyvindmo at initio dot no
22 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
16 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
22 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
16 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
14 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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-1
giodev at panozzo dot it
2 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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-2
Anonymous
20 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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