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ldap_connect

Connect to an LDAP server (PHP 4, PHP 5)
resource ldap_connect ( [string hostname [, int port]] )

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. Defaults to 389.

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

VersionDescription
4.0.4 URL and SSL support was added.

Examples

Example 1114. 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 1115. 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
ldap_bind()