stream_socket_server
stream_socket_server
Create an Internet or Unix domain server socket
**stream_socket_server** string $address int $error_code string $error_message int $flags $context
Creates a stream or datagram socket on the specified
.
address
This function only creates a socket, to begin accepting connections
use .
stream_socket_accept
address
The type of socket created is determined by the transport specified
using standard URL formatting: .
transport://target
For Internet Domain sockets () such as TCP and UDP, the
portion of the
parameter should consist of a
hostname or IP address followed by a colon and a port number. For
Unix domain sockets, the portion should
point to the socket file on the filesystem.
`AF_INET``target``remote_socket``target`
Depending on the environment, Unix domain sockets may not be available.
A list of available transports can be retrieved using
. See
for a list of bulitin transports.
`stream_get_transports`
error_code
If the optional and
arguments are present they will be set to indicate the actual system
level error that occurred in the system-level ,
, and calls. If
the value returned in is
and the function returned false, it is an
indication that the error occurred before the
call. This is most likely due to a problem initializing the socket.
Note that the and
arguments will always be passed by reference.
error_code``error_message``socket()``bind()``listen()``error_code``0``bind()``error_code``error_message
error_message
See description.
error_code
flagsA bitmask field which may be set to any combination of socket creation
flags.
Opmerking: > For UDP sockets, you must use as the parameter.
STREAM_SERVER_BIND``flags
context
Returns the created stream, or false on error.
Voorbeeld: Using TCP server sockets
<?php
$socket = stream_socket_server("tcp://0.0.0.0:8000", $errno, $errstr);
if (!$socket) {
echo "$errstr ($errno)<br />\n";
} else {
while ($conn = stream_socket_accept($socket)) {
fwrite($conn, 'The local time is ' . date('n/j/Y g:i a') . "\n");
fclose($conn);
}
fclose($socket);
}
?>
The example below shows how to act as a time server which can respond to time queries as shown in an example on .
stream_socket_client> Opmerking: > Most systems require root access to create a server socket on a port
below 1024.
Voorbeeld: Using UDP server sockets
<?php
$socket = stream_socket_server("udp://127.0.0.1:1113", $errno, $errstr, STREAM_SERVER_BIND);
if (!$socket) {
die("$errstr ($errno)");
}
do {
$pkt = stream_socket_recvfrom($socket, 1, 0, $peer);
echo "$peer\n";
stream_socket_sendto($socket, date("D M j H:i:s Y\r\n"), 0, $peer);
} while ($pkt !== false);
?>
stream_socket_client``stream_set_blocking``stream_set_timeout``fgets``fgetss``fwrite``fclose``feofCurl extension