my_config.php

<?php
return [
    'Security' => [
        'salt' => '09af7be33b2ef8c91449a67ededf9bcb95343baa3bef7628c6f16cd2d34a9efa',
    ],

    'Datasources' => [
        'default' => [
            'className' => 'Cake\Database\Connection',
            'driver' => 'Cake\Database\Driver\Sqlite',
            'persistent' => false,
            'host' => 'localhost',
            //'port' => 'non_standard_port_number',
            'username' => 'my_app',
            'password' => 'secret',
            'database' => 'my_app.sqlite',
            'encoding' => 'utf8',
            'timezone' => 'UTC',
            'flags' => [],
            'cacheMetadata' => true,
            'log' => false,

            /**
             * Set identifier quoting to true if you are using reserved words or
             * special characters in your table or column names. Enabling this
             * setting will result in queries built using the Query Builder having
             * identifiers quoted when creating SQL. It should be noted that this
             * decreases performance because each query needs to be traversed and
             * manipulated before being executed.
             */
            'quoteIdentifiers' => false,

            /**
             * During development, if using MySQL < 5.6, uncommenting the
             * following line could boost the speed at which schema metadata is
             * fetched from the database. It can also be set directly with the
             * mysql configuration directive 'innodb_stats_on_metadata = 0'
             * which is the recommended value in production environments
             */
            //'init' => ['SET GLOBAL innodb_stats_on_metadata = 0'],

            'url' => env('DATABASE_URL', null),
        ],

        /**
         * The test connection is used during the test suite.
         */
        'test' => [
            'className' => 'Cake\Database\Connection',
            'driver' => 'Cake\Database\Driver\Sqlite',
            'persistent' => false,
            'host' => 'localhost',
            //'port' => 'non_standard_port_number',
            'username' => 'my_app',
            'password' => 'secret',
            'database' => 'test_myapp.sqlite',
            'encoding' => 'utf8',
            'timezone' => 'UTC',
            'cacheMetadata' => true,
            'quoteIdentifiers' => false,
            'log' => false,
            //'init' => ['SET GLOBAL innodb_stats_on_metadata = 0'],
            'url' => env('DATABASE_TEST_URL', null),
        ],
    ],
];