method fetch documentation in bbn\Db\Languages\Sql

Return an indexed array with the first result of the query or false if there are no results.

X::dump($db->fetch("SELECT name FROM users WHERE id = 10"));
/* (array)
[
 "name" => "john",
 0 => "john",
]

function(string $query)
  {
    if ($r = $this->query(...\func_get_args())) {
      return $r->fetch();
    }

    return false;
  }