RADIUS_SERVER_ADDR=192.168.0.20
RADIUS_USER=nemo
RADIUS_PASS=arctangent
RADIUS_SECRET=xyzzy5461

RADIUS_SERVER_ADDR=10.0.100.1 RADIUS_USER=radtest php example/client.php -v

<?php

use Dapphp\Radius\Radius;

require_once '/path/to/radius/autoload.php';
// or, if using composer
require_once '/path/to/vendor/autoload.php';

$client = new Radius();

// set server, secret, and basic attributes
$client->setServer('12.34.56.78') // RADIUS server address
       ->setSecret('radius shared secret')
       ->setNasIpAddress('10.0.1.2') // NAS server address
       ->setAttribute(32, 'login');  // NAS identifier

// PAP authentication; returns true if successful, false otherwise
$authenticated = $client->accessRequest($username, $password);

// CHAP-MD5 authentication
$client->setChapPassword($password); // set chap password
$authenticated = $client->accessRequest($username); // authenticate, don't specify pw here

// MSCHAP v1 authentication
$client->setMSChapPassword($password); // set ms chap password (uses openssl or mcrypt)
$authenticated = $client->accessRequest($username);

// EAP-MSCHAP v2 authentication
$authenticated = $client->accessRequestEapMsChapV2($username, $password);

if ($authenticated === false) {
    // false returned on failure
    echo sprintf(
        "Access-Request failed with error %d (%s).\n",
        $client->getErrorCode(),
        $client->getErrorMessage()
    );
} else {
    // access request was accepted - client authenticated successfully
    echo "Success!  Received Access-Accept response from RADIUS server.\n";
}

// Authenticating against a RADIUS cluster (each server needs the same secret).
// Each server in the list is tried until auth success or failure.  The
// next server is tried on timeout or other error.
// Set the secret and any required attributes first.

$servers = [ 'server1.radius.domain', 'server2.radius.domain' ];
// or
$servers = gethostbynamel("radius.site.domain"); // gets list of IPv4 addresses to a given host

$authenticated = $client->accessRequestList($servers, $username, $password);
// or
$authenticated = $client->accessRequestEapMsChapV2List($servers, $username, $password);


// Setting vendor specific attributes
// Many vendor IDs are available in \Dapphp\Radius\VendorId
// e.g. \Dapphp\Radius\VendorId::MICROSOFT
$client->setVendorSpecificAttribute($vendorId, $attributeNumber, $rawValue);

// Retrieving attributes from RADIUS responses after receiving a failure or success response
$value = $client->getAttribute($attributeId);

// Get an array of all received attributes
$attributes = getReceivedAttributes();

// Debugging
// Prior to sending a request, call
$client->setDebug(true); // enable debug output on console
// Shows what attributes are sent and received, and info about the request/response

Copyright (c) 2008, SysCo systemes de communication sa
SysCo (tm) is a trademark of SysCo systemes de communication sa
(https://www.sysco.ch/)
All rights reserved.

Copyright (c) 2018, Drew Phillips
(https://drew-phillips.com)

Pure PHP radius class is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.

Pure PHP radius class is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with Pure PHP radius class.
If not, see <https://www.gnu.org/licenses/>

Copyright (c) 2002-2010, Michael Bretterklieber <[email protected]>
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. The names of the authors may not be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

This code cannot simply be copied and put under the GNU Public License or
any other GPL-like (LGPL, GPL2) License.