[int|null$port = null]
The function socket_sendto sends length bytes from data through the socket socket to the port at the address address.
A Socket instance created using socket_create.
The sent data will be taken from buffer data.
length bytes from data will be sent.
The value of flags can be any combination of the following flags, joined with the binary OR (|) operator.
Possible values for flags
MSG_OOB Send OOB (out-of-band) data. MSG_EOR Indicate a record mark. The sent data completes the record. MSG_EOF Close the sender side of the socket and include an appropriate notification of this at the end of the sent data. The sent data completes the transaction. MSG_DONTROUTE Bypass routing, use direct interface.
IP address of the remote host.
port is the remote port number at which the data will be sent.
socket_sendto returns the number of bytes sent to the remote host, or false if an error occurred.
|8.0.0||socket is a Socket instance now; previously, it was a resource.|
|8.0.0||port is nullable now.|