config/db.php

<?php
    
    return [
        'class'    => 'yii\db\Connection',
        'dsn'      => 'pgsql:host=127.0.0.1;dbname=kite',
        'username' => 'kite',
        'password' => 'qwerty',
        'charset'  => 'utf8',
        
        // Schema cache options (for production environment)
        //'enableSchemaCache' => true,
        //'schemaCacheDuration' => 60,
        //'schemaCache' => 'cache',
    ];