(PHP 5 >= 5.6.0, PHP 7)
pg_socket — Get a read only handle to the socket underlying a PostgreSQL connection
$connection
)pg_socket() returns a read only resource corresponding to the socket underlying the given PostgreSQL connection.
本函数还未编写文档，仅有参数列表。
connectionPostgreSQL database connection resource.
A socket resource on success 或者在失败时返回 FALSE.