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SOCKET_SET_NONBLOCK(3) 1 SOCKET_SET_NONBLOCK(3) socket_set_nonblock - Sets nonblocking mode for file descriptor fd SYNOPSIS
bool socket_set_nonblock (resource $socket) DESCRIPTION
The socket_set_nonblock(3) function sets the O_NONBLOCK flag on the socket specified by the $socket parameter. When an operation (e.g. receive, send, connect, accept, ...) is performed on a non-blocking socket, the script will not pause its execu- tion until it receives a signal or it can perform the operation. Rather, if the operation would result in a block, the called function will fail. PARAMETERS
o $socket - A valid socket resource created with socket_create(3) or socket_accept(3). RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 socket_set_nonblock(3) example <?php $socket = socket_create_listen(1223); socket_set_nonblock($socket); socket_accept($socket); ?> This example creates a listening socket on all interfaces on port 1223 and sets the socket to O_NONBLOCK mode. socket_accept(3) will immediately fail unless there is a pending connection exactly at this moment. SEE ALSO
socket_set_block(3), socket_set_option(3), stream_set_blocking(3). PHP Documentation Group SOCKET_SET_NONBLOCK(3)