SOCKET_CLEAR_ERROR(3) 1 SOCKET_CLEAR_ERROR(3)socket_clear_error - Clears the error on the socket or the last error codeSYNOPSIS
void socket_clear_error ([resource $socket])
DESCRIPTION
This function clears the error code on the given socket or the global last socket error if no socket is specified.
This function allows explicitly resetting the error code value either of a socket or of the extension global last error code. This may be
useful to detect within a part of the application if an error occurred or not.
PARAMETERS
o $socket
- A valid socket resource created with socket_create(3).
RETURN VALUES
No value is returned.
SEE ALSO socket_last_error(3), socket_strerror(3).
PHP Documentation Group SOCKET_CLEAR_ERROR(3)
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SOCKET_SET_OPTION(3) 1 SOCKET_SET_OPTION(3)socket_set_option - Sets socket options for the socketSYNOPSIS
bool socket_set_option (resource $socket, int $level, int $optname, mixed $optval)
DESCRIPTION
The socket_set_option(3) function sets the option specified by the $optname parameter, at the specified protocol $level, to the value
pointed to by the $optval parameter for the $socket.
PARAMETERS
o $socket
- A valid socket resource created with socket_create(3) or socket_accept(3).
o $level
- The $level parameter specifies the protocol level at which the option resides. For example, to retrieve options at the socket
level, a $level parameter of SOL_SOCKET would be used. Other levels, such as TCP, can be used by specifying the protocol number of
that level. Protocol numbers can be found by using the getprotobyname(3) function.
o $optname
- The available socket options are the same as those for the socket_get_option(3) function.
o $optval
- The option value.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
socket_set_option(3) example
<?php
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if (!is_resource($socket)) {
echo 'Unable to create socket: '. socket_strerror(socket_last_error()) . PHP_EOL;
}
if (!socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1)) {
echo 'Unable to set option on socket: '. socket_strerror(socket_last_error()) . PHP_EOL;
}
if (!socket_bind($socket, '127.0.0.1', 1223)) {
echo 'Unable to bind socket: '. socket_strerror(socket_last_error()) . PHP_EOL;
}
$rval = socket_get_option($socket, SOL_SOCKET, SO_REUSEADDR);
if ($rval === false) {
echo 'Unable to get socket option: '. socket_strerror(socket_last_error()) . PHP_EOL;
} else if ($rval !== 0) {
echo 'SO_REUSEADDR is set on socket !' . PHP_EOL;
}
?>
PHP Documentation Group SOCKET_SET_OPTION(3)
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