yii2-app-basic/config/codeception/functional.php

<?php

// configuration adjustments for codeception functional tests. Will be merged with web.php config.

return [
	'components' => [
		'db' => [
			'dsn' => 'mysql:host=localhost;dbname=yii2basic_functional',
		],
		'request' => [
			'enableCsrfValidation' => false,
		],
		'urlManager' => [
			'baseUrl' => '/web/index.php',
		],
	],
];