yii\db\oci\Schema::insert PHP Method

    public function insert($table, $columns)
    {
        $params = [];
        $returnParams = [];
        $sql = $this->db->getQueryBuilder()->insert($table, $columns, $params);
        $tableSchema = $this->getTableSchema($table);
        $returnColumns = $tableSchema->primaryKey;
        if (!empty($returnColumns)) {
            $columnSchemas = $tableSchema->columns;
            $returning = [];
            foreach ((array) $returnColumns as $name) {
                $phName = QueryBuilder::PARAM_PREFIX . (count($params) + count($returnParams));
                $returnParams[$phName] = ['column' => $name, 'value' => null];
                if (!isset($columnSchemas[$name]) || $columnSchemas[$name]->phpType !== 'integer') {
                    $returnParams[$phName]['dataType'] = \PDO::PARAM_STR;
                } else {
                    $returnParams[$phName]['dataType'] = \PDO::PARAM_INT;
                }
                $returnParams[$phName]['size'] = isset($columnSchemas[$name]) && isset($columnSchemas[$name]->size) ? $columnSchemas[$name]->size : -1;
                $returning[] = $this->quoteColumnName($name);
            }
            $sql .= ' RETURNING ' . implode(', ', $returning) . ' INTO ' . implode(', ', array_keys($returnParams));
        }
        $command = $this->db->createCommand($sql, $params);
        $command->prepare(false);
        foreach ($returnParams as $name => &$value) {
            $command->pdoStatement->bindParam($name, $value['value'], $value['dataType'], $value['size']);
        }
        if (!$command->execute()) {
            return false;
        }
        $result = [];
        foreach ($returnParams as $value) {
            $result[$value['column']] = $value['value'];
        }
        return $result;
    }