PHP: ldap_mod_del - Manual

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Last updated: Fri, 26 Jan 2007

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# ldap_mod_del

(PHP 3 >= 3.0.8, PHP 4, PHP 5)

ldap_mod_del -- Delete attribute values from current attributes

## Description

bool ldap_mod_del ( resource link_identifier, string dn, array entry )

Возвращает `TRUE` в случае успешного завершения или `FALSE` в случае возникновения ошибки.

This function removes attribute(s) from the specified `dn`. It performs the modification at the attribute level as opposed to the object level. Object-level deletions are done by the ldap_delete() function.

add a note User Contributed Notes
ldap_mod_del
06-Apr-2006 08:35
`For anyone interested in removing a user from a group, you can use ldap_mod_del() as follows:
$group = 'CN=mygroup,OU=myOU,DC=mydomain,DC=com';
$group_info['member'] = 'CN=User\, Test,CN=Users,DC=mydomain,DC=com';
ldap_mod_del($ldap, $group, $group_info);
I have tested this using Active Directory on a Win 2K3 server.`
thomas dot thiel at tapgmbh dot com
09-Dec-2002 08:42
`and please don't forget:
you can't delete all attributes, when at least one is required.`
JoshuaStarr at aelana dot com
13-May-2002 10:24
`The above example has also been proven to work in the iPlanet / Sun One Directory Server 5.0/5.1. As an example:
$attrs["mail"] = array();
ldap_mod_del($ldapConnID,$dn,$attrs);
or
$attrs["mail"] = array();
$attrs["telephonenumber"] = array();
ldap_mod_del($ldapConnID,$dn,$attrs);
This will remove all occurences of attributes in the entry specified by the dn.`
ral at royal dot net
30-Aug-2001 08:09
`At least with OpenLDAP 1.2.x
to remove an attribute regardless of it's value you have to assign:
$attrs["AttributeName"]=array();
after ldap_mod_del($ds,$dn,$attrs)
all occurences of AttributeName will be removed`
ral at royal dot net
22-Jul-2001 10:33
`To remove all instances of an attribute:
$entry["attrname"][]="value1";
$entry["attrname"][]="value2";
...
$entry["attrname"][]="valueN";
ldap_mod_del($ds, $dn, $entry);`
twopairs at solfy dot com
22-Jul-2001 05:05
`<pre>
uid: testuser
mail: testuser@test.net
mail: testuser@somewhere.com
</pre>
How to remove the values of mail so that only the second value for mail exists:
<pre>
$entry["mail"] = "testuser@test.net";
$result = ldap_mod_del($connID, $dn, $entry);
</pre>
if you want to remove all instances of an attribute.....
==>
<pre>
$entry["mail"][0] = "testuser@test.net";
$entry["mail"][1] = "testuser@somewhere.net";
$result = ldap_mod_del($connID, $dn, $entry);
</pre>
are not?`
sam_freund at yahoo dot com
05-Dec-2000 12:11
`Using ldap_modify with a blank string works if you aren't propagating your LDAP database, even though it returns the error. Still, I'd say don't do it, as it smacks of something that will be fixed in a future version.`
mark at cushman dot net
20-Nov-2000 09:17
`I have found that the syntax:
$entry["mail"] = "";
Will NOT delete the mail attribute using the OpenLDAP server. You must specify the attribute value to delete it successfully, otherwise you will recieve an "Invalid Syntax" error from the server.
The error: "Inappropriate Matching" will be displayed if the attribute you are trying to delete has no equality rule in the schema. I had a problem deleting the attribute facsimilieTelephoneNumber, and it was because my core.schema file did not have an EQUALITY definition for that attribute. I copied the telephoneNumber EQUALITY rule and it worked perfectly.`
arjanw at bigfoot dot com
08-Aug-2000 11:15
`To remove all instances of an attribute you can use ldap_modify with an empty value for that attribute.
$entry["mail"] = "";
$result = ldap_modify($connID, $dn, $entry);`
arimus at apu dot edu
27-Apr-2000 07:35
`<p>After a couple hours of searching and not finding anything on the ldap_mod_del function worth anything, I started trying to figure out myself what format the "array entry" parameter needed to be in. Here is what I found:</p>
<p>The entry array is a hash with the attribute name as the hash key and the specific value you want deleted for that attribute as the corresponding hash value.</p>
<p><b>Example</b></p>
<p>Current values for the attributes of of a particular entry:</p>
<pre>
uid: testuser
mail: testuser@test.net
mail: testuser@somewhere.com
</pre>
<p>How to remove the first value of mail so that only the second value for mail exists:</p>
<pre>
$entry["mail"] = "testuser@test.net";
$result = ldap_mod_del($connID, $dn, $entry);
</pre>
<br>
<p>So if you want to remove all instances of an attribute, you have to do it one by one.</p>`
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Last updated: Fri, 26 Jan 2007
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