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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