PG_FLUSH(3) PG_FLUSH(3) pg_flush - Flush outbound query data on the connectionSYNOPSISmixed pg_flush (resource $connection)DESCRIPTIONpg_flush(3) flushes any outbound query data waiting to be sent on the connection.PARAMETERSo $connection - PostgreSQL database connection resource.RETURN VALUESReturns 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. PHP Documentation Group PG_FLUSH(3)