use \Fuko\Masked\Protect;

// consider these values inside $config
// $config = array(
// 	'project_title' => 'My New Project!',
// 	'mysql_username' => 'me',
// 	'mysql_password' => 'Mlyk!',
// 	'mysql_database' => 'project',
// 	'root' => '/var/www/niakade/na/majnata/si',
// 	'i.am.stupid' => 'Mlyk! e egati parolata za moya project',
// 	);

Protect::hideValue($config['mysql_username']);
Protect::hideValue($config['mysql_password']);
Protect::hideValue($config['mysql_database']);

print_r(Protect::protect($config));
/* ... and the output is
Array
(
    [project_title] => My New Project!
    [mysql_username] => ██
    [mysql_password] => █████
    [mysql_database] => ███████
    [root] => /var/www/niakade/na/majnata/si
    [i.am.stupid] => █████ e egati parolata za moya ███████
)
*/