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PHP

Connect to an LDAP server


ldap_connect

(PHP 4, PHP 5)

ldap_connectConnect to an LDAP server

Description

resource ldap_connect ([ string $hostname = NULL [, int $port = 389 ]] )

Establishes a connection to a LDAP server on a specified hostname and port.

Parameters

hostname

If you are using OpenLDAP 2.x.x you can specify a URL instead of the hostname. To use LDAP with SSL, compile OpenLDAP 2.x.x with SSL support, configure PHP with SSL, and set this parameter as ldaps://hostname/.

port

The port to connect to. Not used when using URLs.

Return Values

Returns a positive LDAP link identifier on success, or FALSE on error. When OpenLDAP 2.x.x is used, ldap_connect() will always return a resource as it does not actually connect but just initializes the connecting parameters. The actual connect happens with the next calls to ldap_* funcs, usually with ldap_bind().

If no arguments are specified then the link identifier of the already opened link will be returned.

Changelog

Version Description
4.0.4 URL and SSL support was added.

Examples

Example #1 Example of connecting to LDAP server.

<?php

// LDAP variables
$ldaphost "ldap.example.com";  // your ldap servers
$ldapport 389;                 // your ldap server's port number

// Connecting to LDAP
$ldapconn ldap_connect($ldaphost$ldapport)
          or die(
"Could not connect to $ldaphost");

?>

Example #2 Example of connecting securely to LDAP server.

<?php

// make sure your host is the correct one
// that you issued your secure certificate to
$ldaphost "ldaps://ldap.example.com/";

// Connecting to LDAP
$ldapconn ldap_connect($ldaphost)
          or die(
"Could not connect to {$ldaphost}");

?>

See Also



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