public array PDO::pgsqlGetNotify    ([ int $result_type = PDO::FETCH_USE_DEFAULT   [, int $ms_timeout = 0  ]] )

PDO::pgsqlGetNotifyGet asynchronous notification

result_type

The format the result set should be returned as, represented as a PDO::FETCH_* constant.

ms_timeout

The length of time to wait for a response, in milliseconds.