PHP 7.4.25 Released!


(PHP 4, PHP 5, PHP 7)

ldap_mod_addAdd attribute values to current attributes


ldap_mod_add ( resource $ldap , string $dn , array $entry , array|null $controls = null ) : bool

Adds one or more attribute values to the specified dn. To add a whole new object see ldap_add() function.



An LDAP link identifier, returned by ldap_connect().


The distinguished name of an LDAP entity.


An associative array listing the attirbute values to add. If an attribute was not existing yet it will be added. If an attribute is existing you can only add values to it if it supports multiple values.


Array of LDAP Controls to send with the request.

Valorile întoarse

Întoarce valoarea true în cazul succesului sau false în cazul eșecului.

Istoricul schimbărilor

Versiune Descriere
8.0.0 controls is nullable now; previously, it defaulted to [].
7.3 Support for controls added


Notă: Această funcție acceptă și date binare.

A se vedea și

add a note add a note

User Contributed Notes 4 notes

theiderich AT laweekly dot com
16 years ago
When adding/editing attributes for a user, the 'memberof' attribute is a special case.  The memberOf attribute is not an accessible attribute of the user schema. To add someone to a group, you have to add the user in the group, and not the group in the user. You can do this by accessing the group attribute 'member':


= "CN=MyGroup,OU=Groups,DC=example,DC=com";
$group_info['member'] = $dn; // User's DN is added to group's 'member' array

bart-holland at wedefo dot nl
7 years ago
Adding a user to a group in Apple's OpenDirectory goes as follows:


= "cn=groupname,cn=groups,dc=example,dc=com";
$entry['memberuid'] = "username";

ldap_mod_add($connect, $dn, $entry);

JoshuaStarr at aelana dot com
20 years ago
To add a new attribute with a single value:

$entry[mail] = "";
$results = ldap_mod_add($ldapConnID, $dn, $entry);

To add a new attribute with multiple values:

$entry[mail][] = "";
$entry[mail][] = "";
$results = ldap_mod_add($ldapConnID, $dn, $entry);
Claudio Lente <nelchael at ig dot com dot br>
18 years ago
Using PHP 4.2.3 with IIS 5 and Win2k Server. My confs are:

$ldap_srvr = 'servername' ;
$ldap_port = 389;
$ldap_con = ldap_connect($ldap_srvr, $ldap_port);
$ldap_rdn  = "username";
$ldap_pwd = "__password__";

$ldap_vbind = ldap_bind($ldap_con, $ldap_rdn, $ldap_pwd);

$base_dn= 'CN=username,CN=Users,DC=domain,DC=org,DC=us
' ;
$ldap_filter= 'objectClass=*';


ldap_mod_add($ldap_con, $base_dn, $info);
ldap_add($ldap_con, $base_dn, $info);

this generate an error:
- Warning: LDAP: modify operation could not be completed. in

ldap_modify($ldap_con, $base_dn, $info);

this function corretly.

Its all.
To Top