php man page for ldap_connect

LDAP_CONNECT(3) 							 1							   LDAP_CONNECT(3)

ldap_connect - Connect to an LDAP server

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

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

PARAMETERS
	      o $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/.

	      o $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(3) 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(3).

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

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
       ldap_bind(3).

PHP Documentation Group 													   LDAP_CONNECT(3)