A Heroku PostgreSQL connection for Laravel

database.php

<?php

return [
  
  'connections' => [
    
    'heroku_pgsql' => [
      'driver' => 'pgsql',
      'host' => @parse_url(getenv("DATABASE_URL"))['host'],
      'port' => env('DB_PORT', '5432'),
      'database' => @substr(parse_url(getenv("DATABASE_URL"))['path'],1),
      'username' => @parse_url(getenv("DATABASE_URL"))['user'],
      'password' => @parse_url(getenv("DATABASE_URL"))['pass'],
      'charset' => 'utf8',
      'prefix' => '',
      'schema' => 'public',
      'sslmode' => 'prefer',
    ],
  ],
];

The @ suppresses the Notice: Undefined index. message for local development.