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socket_clear_error	socket_cmsg_space

Socket Functions	Last updated: Mon, 26 Oct 2026

socket_close

(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)

socket_close — Closes a Socket instance

Description

function socket_close(Socket $socket): void

socket_close() closes the Socket instance given by socket.

Parameters

socket: A Socket instance created with socket_create() or socket_accept().

Return Values

No value is returned.

Changelog

Version	Description
8.0.0	`socket` is a Socket instance now; previously, it was a resource.

See Also

socket_bind() - Binds a name to a socket
socket_listen() - Listens for a connection on a socket
socket_create() - Create a socket (endpoint for communication)
socket_strerror() - Return a string describing a socket error

socket_clear_error	socket_cmsg_space

Socket Functions	Last updated: Mon, 26 Oct 2026