socket_connect
Hi,
if you got same problems like i have
@socket_write($xd, "Good Bye!\n\r");
@socket_shutdown($xd, 2);
@socket_close($xd);
wont'tx send "Good Bye!\n\r" to the opened socket.
but if you put a
usleep or something like echo "";
between write and shutdown its working.
socket_create_listen
(PHP 4 >= 4.0.7, PHP 5)
socket_create_listen — Opens a socket on port to accept connections
Description
resource socket_create_listen
( int $port
[, int $backlog
] )
socket_create_listen() creates a new socket resource of type AF_INET listening on all local interfaces on the given port waiting for new connections.
This function is meant to ease the task of creating a new socket which only listens to accept new connections.
Parameters
- port
-
The port on which to listen on all interfaces.
- backlog
-
The backlog parameter defines the maximum length the queue of pending connections may grow to. SOMAXCONN may be passed as backlog parameter, see socket_listen() for more information.
Return Values
socket_create_listen() returns a new socket resource on success or FALSE on error. The error code can be retrieved with socket_last_error(). This code may be passed to socket_strerror() to get a textual explanation of the error.
Notes
Note: If you want to create a socket which only listens on a certain interface you need to use socket_create(), socket_bind() and socket_listen().
add a note
User Contributed Notessocket_create_listen
masterwaster at gmail dot com
26-Aug-2008 07:42
26-Aug-2008 07:42
aeolianmeson at ifacfchi dot blitzeclipse dot com
26-Jun-2008 11:34
26-Jun-2008 11:34
I believe that on some systems this may not bind to some or all public interfaces.
On my Windows system, I could not connect on the public interface using this, but could when I made the individual calls to create, bind, and listen.
Dustin Oprea
sysspoof at ng-lab dot org
06-Mar-2008 07:03
06-Mar-2008 07:03
Please note that port 1 to and with 1024 on linux and bsd system require root privileges. So it is recommended to choose a higher port for your own application.
jdittmer at ppp0 dot net
17-Jul-2004 12:42
17-Jul-2004 12:42
If you specify no port number, or 0, a random free port will be chosen.
To use ports for ipc between client/server on the same machine you can use (minus error checking)
server.php:
<?php
$sock = socket_create_listen(0);
socket_getsockname($sock, $addr, $port);
print "Server Listening on $addr:$port\n";
$fp = fopen($port_file, 'w');
fwrite($fp, $port);
fclose($fp);
while($c = socket_accept($sock)) {
/* do something useful */
socket_getpeername($c, $raddr, $rport);
print "Received Connection from $raddr:$rport\n";
}
socket_close($sock);
?>
client.php:
<?php
$fp = fopen($port_file, 'r');
$port = fgets($fp, 1024);
fclose($fp);
$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_connect($sock, '127.0.0.1', $port);
socket_close($sock);
?>