SQLSTATE[HY000] [2003] Can't connect to MySQL server on '127.0.0.1' (61)

/Applications/MAMP/htdocs/crowdsets/laravel-master/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php

public function createConnection($dsn, array $config, array $options)
    {
        $username = array_get($config, 'username');

        $password = array_get($config, 'password');

        return new PDO($dsn, $username, $password, $options);
    }

'mysql' => array(
            'driver'    => 'mysql',
            'host'      => '127.0.0.1',
            'database'  => 'database',
            'username'  => 'root',
            'password'  => 'root',
            'charset'   => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix'    => '',
        ),

'mysql' => array(
            'driver'    => 'mysql',
            'host'      => '127.0.0.1',
            'port'      => '8889',
            'database'  => 'database',
            'username'  => 'root',
            'password'  => 'root',
            'charset'   => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix'    => '',
        ),