PostgreSQL Functions
PHP Manual

pg_flush

Flush outbound query data on the connection

Description

mixed pg_flush ( resource $connection )

pg_flush flushes any outbound query data waiting to be sent on the connection.

Parameters

connection

PostgreSQL database connection resource.

Return Values

Returns TRUE if the flush was successful or no data was waiting to be flushed, 0 if part of the pending data was flushed but more remains or FALSE on failure.