ldap_control_paged_result

(PHP 5 >= 5.4.0, PHP 7)

ldap_control_paged_resultEnvoi un contrôle de pagination LDAP

Description

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

Active la pagination LDAP en envoyant le contrôle de pagination (taille de la page, cookie,...).

Liste de paramètres

link

Un identifiant de lien LDAP, retourné par la fonction ldap_connect().

pagesize

Le nombre d'entrées par page.

iscritical

Indique si la pagination est critique ou non. Si vaut TRUE, et si le serveur ne supporte pas la pagination, la recherche ne retournera aucun résultat.

cookie

Une structure opaque envoyée par le serveur (ldap_control_paged_result_response()).

Valeurs de retour

Cette fonction retourne TRUE en cas de succès ou FALSE si une erreur survient.

Exemples

L'exemple ci-dessous montre la manière pour récupérer la première page d'une recherche paginée avec une seule entrée par page.

Exemple #1 Pagination LDAP

<?php
     
// $ds est un identifiant de lien valide (voir 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');

     
// active la pagination avec une taille de page à 1.
     
ldap_control_paged_result($ds1);

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

     
$info ldap_get_entries($ds$sr);

     echo 
$info['count'] . ' entrées retournées' PHP_EOL;

L'exemple ci-dessous montre la manière pour récupérer tous les résultats paginés avec 100 entrées par page.

Exemple #2 Pagination LDAP

<?php
     
// $ds est un identifiant de lien valide (voir 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');

     
// active la pagination avec une taille de page à 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 != '');

Notes

Note:

Le contrôle de la pagination est une fonctionalité du protocole LDAPv3.

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User Contributed Notes 6 notes

up
2
etienne at lamaisondebarbie dot ch
4 years 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
2
Blizzz
2 years 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
1
James
4 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.
up
1
steven_bauman at outlook dot com
3 months ago
While another note suggests resetting the control paged result by passing in `0` (zero), it actually still prevents any further queries being ran during the same request.

You actually need to set it to a large number to run further queries it seems. For example:

<?php
ldap_control_paged_result
($connection, 100, true, $cookie);

// Run the search
...

// What is supposed to work (reset)
ldap_control_paged_result($connection, 0, false, $cookie);

// What actually works
ldap_control_paged_result($connection, 1000, false, $cookie);
?>

In the above method, 1000 is just a placeholder, but this seems to actually **limit** further queries to this amount of results, so if you set it to `1`, then you'll only receive **one** result for any further queries during the same request.
up
1
jestertrance at hotmail dot com
3 years 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
-2
dublue at gmail dot com
2 years 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.
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