Je was op zoek naar: sequenced (Koreaans - Engels)

ipx/spx(internetwork packet exchange/sequenced packet exchange)
internetwork packet exchange/sequenced packet exchange

4 - this event recurs monthly on a sequenced day of the week (e.g. the 3rd saturday)
mcal_fetch_current_stream_event

php_stream_sock_open_host() establishes a connect to the specified host and port. socktype specifies the connection semantics that should apply to the connection. values for socktype are system dependent, but will usually include (at a minimum) sock_stream for sequenced, reliable, two-way connection based streams (tcp), or sock_dgram for connectionless, unreliable messages of a fixed maximum length (udp).
values for socktype are system dependent, but will usually include (at a minimum) sock_stream for sequenced, reliable, two-way connection based streams (tcp), or sock_dgram for connectionless, unreliable messages of a fixed maximum length (udp).