CI_DB_forge::_create_table PHP Method

    protected function _create_table($table, $if_not_exists, $attributes)
    {
        if ($if_not_exists === TRUE && $this->_create_table_if === FALSE) {
            if ($this->db->table_exists($table)) {
                return TRUE;
            } else {
                $if_not_exists = FALSE;
            }
        }
        $sql = $if_not_exists ? sprintf($this->_create_table_if, $this->db->escape_identifiers($table)) : 'CREATE TABLE';
        $columns = $this->_process_fields(TRUE);
        for ($i = 0, $c = count($columns); $i < $c; $i++) {
            $columns[$i] = $columns[$i]['_literal'] !== FALSE ? "\n\t" . $columns[$i]['_literal'] : "\n\t" . $this->_process_column($columns[$i]);
        }
        $columns = implode(',', $columns) . $this->_process_primary_keys($table);
        // Are indexes created from within the CREATE TABLE statement? (e.g. in MySQL)
        if ($this->_create_table_keys === TRUE) {
            $columns .= $this->_process_indexes($table);
        }
        // _create_table will usually have the following format: "%s %s (%s\n)"
        $sql = sprintf($this->_create_table . '%s', $sql, $this->db->escape_identifiers($table), $columns, $this->_create_table_attr($attributes));
        return $sql;
    }