ldap_control_paged_result

(PHP 5 >= 5.4.0)

ldap_control_paged_resultSend LDAP pagination control

Descrizione

bool ldap_control_paged_result ( resource $link , int $pagesize [, bool $iscritical = false [, string $cookie = "" ]] )

Enable LDAP pagination by sending the pagination control (page size, cookie...).

Elenco dei parametri

link

An LDAP link identifier, returned by ldap_connect().

pagesize

The number of entries by page.

iscritical

Indicates whether the pagination is critical of not. If true and if the server doesn't support pagination, the search will return no result.

cookie

An opaque structure sent by the server (ldap_control_paged_result_response()).

Valori restituiti

Restituisce TRUE in caso di successo, FALSE in caso di fallimento.

Esempi

The example below show the retrieval of the first page of a search paginated with one entry by page.

Example #1 LDAP pagination

<?php
     
// $ds is a valid link identifier (see ldap_connect)
     
ldap_set_option($dsLDAP_OPT_PROTOCOL_VERSION3);

     
$dn        'ou=example,dc=org';
     
$filter    '(|(sn=Doe*)(givenname=John*))';
     
$justthese = array('ou''sn''givenname''mail');

     
// enable pagination with a page size of 1.
     
ldap_control_paged_result($ds1);

     
$sr ldap_search($ds$dn$filter$justthese);

     
$info ldap_get_entries($ds$sr);

     echo 
$info['count'] . ' entries returned' PHP_EOL;

The example below show the retrieval of all the result paginated with 100 entries by page.

Example #2 LDAP pagination

<?php
     
// $ds is a valid link identifier (see ldap_connect)
     
ldap_set_option($dsLDAP_OPT_PROTOCOL_VERSION3);

     
$dn        'ou=example,dc=org';
     
$filter    '(|(sn=Doe*)(givenname=John*))';
     
$justthese = array('ou''sn''givenname''mail');

     
// enable pagination with a page size of 100.
     
$pageSize 100;

     
$cookie '';
     do {
         
ldap_control_paged_result($ds$pageSizetrue$cookie);

         
$result  ldap_search($ds$dn$filter$justthese);
         
$entries ldap_get_entries($ds$result);
             
         foreach (
$entries as $e) {
             echo 
$e['dn'] . PHP_EOL;
         }

         
ldap_control_paged_result_response($ds$result$cookie);
       
     } while(
$cookie !== null && $cookie != '');

Note

Nota:

Pagination control is a LDAPv3 protocol feature.

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User Contributed Notes 5 notes

up
0
dublue at gmail dot com
9 days ago
So how do you now sort the entire result? It appears you can't use ldap_sort as it uses the search resource which is within the loop.
up
0
Blizzz
5 months ago
If you did a paged search operation and want to do any other read operation on LDAP, you need to reset it, otherwise you will experience LDAP errors (code 12, for instance).

<?php

ldap_control_paged_result
($link, 0);

?>
up
0
jestertrance at hotmail dot com
1 year ago
You may need to do an ldap_bind before running ldap_control_paged_result to get this to work:

$conn = ldap_connect("you_ip");
ldap_set_option($conn, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_bind("your_connection_info");       
ldap_control_paged_result($conn, $pageSize, true, $cookie)

Without doing an ldap_bind, I kept getting the error "Critical extension is unavailable". I don't if this is standard knowledge, but knowing this would have saved me days of frustration.
up
0
etienne at lamaisondebarbie dot ch
1 year ago
Paged results, as specified in the RFC 2696, does not allow to get over the server sizeLimit. The RFC clearly states "If the page size is greater than or equal to the sizeLimit value, the server should ignore the control as the request can be satisfied in a single page".
With OpenLDAP, you will not get more than the sizeLimit number of entries with paged results.
up
0
James
2 years ago
I was able to get these functions to work successfully with Active Directory.  When I first tried it, ldap_search kept returning a Not Supported reply from the server.  I finally figured out that I needed to include

ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);

in my code, so that AD would let me page results.  Make sure you're using a compatible protocol.

Hope this note helps someone else.
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