WeberDev.com -> PHP Manual -> Sends data to a connected socket

int socket_send ( resource $socket , string $buf , int $len , int $flags )

The function socket_send() sends len bytes to the socket socket from buf .

socket

A valid socket resource created with socket_create() or socket_accept().

buf

A buffer containing the data that will be sent to the remote host.

len

The number of bytes that will be sent to the remote host from buf .

flags

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.

socket_send