Ldap.php

<?php

require_once 'Nmc/Auth/Interface.php';

class Nmc_Auth_Ldap implements Nmc_Auth_Interface
{
    protected $_conn;

    public function __construct( NMC_Ldap $conn )
    {
        $this->_conn = $conn;
    }

	public function login( $user_name, $password )
	{
	    try {
            $this->_conn->bind("uid=$user_name,ou=people,dc=unl,dc=edu", $password);

    		$filter = 'uid=' . $user_name;
    		$this->_conn->search('ou=people,dc=unl,dc=edu', $filter );
	    } catch(Exception $e) {
            throw new Nmc_Auth_Exception($e->getMessage(), $e->getCode());
	    }

		return true;
	}
}