src/Database/QueryBuilder.php
protected function public__from($table_name = NULL)
    {
        if ($table_name == NULL) {
            return $this;
        }

        $this->properties['from'] = \is_array($table_name) ? $table_name : \func_get_args();
        return $this;
    }
protected function public__from($table_name = NULL)
    {
        if ($table_name == NULL) {
            return $this;
        }

        $this->properties['from'] = \is_array($table_name) ? $table_name : \func_get_args();
        return $this;
    }
<code>
$qb = $conn->QueryBuilder()
->select('users.id', 'users.username', 'menu.id')
->from('users', 'menus')
->execute();

$qb = $conn->QueryBuilder()
->select('users.id', 'users.username', 'menu.id')
->from(['users', '`menus`'])
->execute();

</code>

@param string $table_name
@return \Database\QueryBuilder