Error on Azure Authentication in PHP - php

Question

I am getting following error in Azure Authentication. Kindly help me understand the same.
Fatal error: Uncaught exception
'League\OAuth2\Client\Provider\Exception\IdentityProviderException'
with message 'invalid_client' in
/var/www/html/active/vendor/league/oauth2-client/src/Provider/GenericProvider.php:216
Stack trace: #0
/var/www/html/active/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(644):
League\OAuth2\Client\Provider\GenericProvider->checkResponse(Object(GuzzleHttp\Psr7\Response),
Array) #1
/var/www/html/active/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(560):
League\OAuth2\Client\Provider\AbstractProvider->getResponse(Object(GuzzleHttp\Psr7\Request))
2 /var/www/html/active/src/Delegates/Receive.php(82): League\OAuth2\Client\Provider\AbstractProvider->getAccessToken('authorization_c...',
Array) #3 /var/www/html/active/src/ActiveDirectory.php(180):
Magium\ActiveDirectory\Delegates\Receive->execute() #4
/var/www/html/active/index.php(25):
Magium\ActiveDirectory\ActiveDirectory->authenticate() #5 {main}
thrown in
/var/www/html/active/vendor/league/oauth2-client/src/Provider/GenericProvider.php
on line 216
I have the following code
<?php
ini_set('display_errors', 1);
require_once 'vendor/autoload.php';
session_start();
$config = [
'authentication' => [
'ad' => [
'client_id' => 'xxx',
'client_secret' => 'xxx',
'enabled' => '1',
'directory' => 'common'
]
]
];
$request = new \Zend\Http\PhpEnvironment\Request();
$ad = new \Magium\ActiveDirectory\ActiveDirectory(
new \Magium\Configuration\Config\Repository\ArrayConfigurationRepository($config),
Zend\Psr7Bridge\Psr7ServerRequest::fromZend(new \Zend\Http\PhpEnvironment\Request())
);
$entity = $ad->authenticate();
echo $entity->getName() . '<Br />';
// echo $entity->getOid() . '<Br />';
echo $entity->getPreferredUsername() . '<Br />';
URL : https://github.com/magium/active-directory
Kindly help.

Answer 1

Microsoft automatically signs in using the client id which is used first time. If it is a wrong one, it will always throw this error even if it is updated in .env file. How to overcome this?
Go to Apps & Services page
Click on Edit against the app you are trying to sign in
Click on Remove these permissions button
Try to authenticate again