pg_transaction_status - PHP code example

PHP Function PG_Transaction_Status

php function pg_transaction_status is one of the most important functions that you need to know in PHP. This function is used to check the status of a database transaction. This function will return the current transaction status and whether or not it has been committed. It can also be used to check the status of a prepared statement.

This function is useful because it can be used to check the status of a query that has not been completed. This can save you a lot of time because it will not need to wait for the complete query to be sent. It will return the status of the transaction in a short amount of time.

Another useful function is pg_send_execute(). This is a function that allows you to send commands and separate parameters to the server without waiting for the result(s). This function will only work with PostgreSQL 9.4 and above, and it will not work on older versions of the database.

The last function that we will discuss is pg_lo_seek(). This function seeks a position within the PostgreSQL large object (LOB) resource returned by pg_lo_open(). To use the large object interface it is required that you enclose the function within a transaction block that starts with SQL statement BEGIN and ends with either COMMIT or ROLLBACK.

This function will return a value that represents the current state of the PostgreSQL transaction. This value can be PGSQL_TRANSACTION_IDLE, PGSQL_TRANSACTION_ACTIVE or PGSQL_TRANSACTION_INERROR. It will also return a string that represents an individual field of the error report.

pg_transaction_status example

    /** * @return array */
    public static function castLink($link, array $a, Stub $stub, bool $isNested)
    {
        $a['status'] = pg_connection_status($link);
        $a['status'] = new ConstStub(\PGSQL_CONNECTION_OK === $a['status'] ? 'PGSQL_CONNECTION_OK' : 'PGSQL_CONNECTION_BAD', $a['status']);
        $a['busy'] = pg_connection_busy($link);

        $a['transaction'] = pg_transaction_status($link);
        if (isset(self::TRANSACTION_STATUS[$a['transaction']])) {
            $a['transaction'] = new ConstStub(self::TRANSACTION_STATUS[$a['transaction']], $a['transaction']);
        }

        $a['pid'] = pg_get_pid($link);
        $a['last error'] = pg_last_error($link);
        $a['last notice'] = pg_last_notice($link);
        $a['host'] = pg_host($link);
        $a['port'] = pg_port($link);
        $a['dbname'] = pg_dbname($link);
        $a['options'] = pg_options($link);