So I’m trying to make a flash chat client with Obi Admin’s tutorial seen here:
http://www.kirupa.com/developer/flash8/php5sockets_flash8.htm
… but I’ve run into a problem. I’m using WAMP server, which is Apache, PHP, and mySQL all bundled together by the way. But anyways, when I try to run the .bat file used in his tutorial, I get an error that closes command prompt. I was able to screenshot the message and it says something about s a fatal error caused by a socket being created on line 45.
#!/usr/bin/php -q
<?php
/*
Raymond Fain
Used for PHP5 Sockets with Flash 8 Tutorial for Kirupa.com
For any questions or concerns, email me at [email protected]
or simply visit the site, www.php.net, to see if you can find an answer.
*/
// E_ALL is a named constant (bit of 2047)
// error_reporting(E_ALL) ensures any errors will be displayed
error_reporting(E_ALL);
// set_time_limit() is set to 0 to impose no time limit
set_time_limit(0);
// ob_implicit_flush() will push the whole message to flash (including any extra markups like terminating zeros)
ob_implicit_flush();
// address set to internal port for the socket to bind to and port set to something above 1024 so flash will connect
$address = '192.168.1.126';
$port = 3306;
//---- Function to Send out Messages to Everyone Connected ----------------------------------------
// $allclient is an array of resource id's that php will refer to for the sockets
// $socket contains the resource id for the flash client who sent the message
// $buf is just the message they sent, we are sending to everyone using a foreach loop
function send_Message($allclient, $socket, $buf) {
foreach($allclient as $client) {
// socket_write uses the $client resource id (which calls on the socket) and sends it our message (which is the second flag)
socket_write($client, "$socket wrote: $buf");
}
}
//---- Start Socket creation for PHP 5 Socket Server -------------------------------------
// socket_create function is pretty simple, depending on what you want it to do, you can just rig it for that,
// AF_INET is a "kind of" default address/protocol family that I have used,
// then socket_create takes and uses SOCK_STREAM, another default available socket type,
// and uses a SOL_TCP protocol to have a guaranteed data sending.
if (($master = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) < 0) {
echo "socket_create() failed, reason: " . socket_strerror($master) . "
";
}
// this little beauty is hard to understand, but very useful to our kind of chat
// we want to be able to reuse our sockets, so we set our $master socket with a level at SOL_SOCKET,
// with it reusable (SO_REUSEADDR), and a "1" in the mixed optval spot to make it true.
socket_set_option($master, SOL_SOCKET,SO_REUSEADDR, 1);
// now we need to bind our socket to the address and port specified.
if (($ret = socket_bind($master, $address, $port)) < 0) {
echo "socket_bind() failed, reason: " . socket_strerror($ret) . "
";
}
// to allow our socket server to listen for incoming calls made by our flash client, we need
// to use socket_listen on our $master socket. The next flag indicates that only 5 calls at a time.
// any others will be refused until there is sufficient room to process a new call.
if (($ret = socket_listen($master, 5)) < 0) {
echo "socket_listen() failed, reason: " . socket_strerror($ret) . "
";
}
// this will allow an easy way to keep track of sockets connected to our server
$read_sockets = array($master);
//---- Create Persistent Loop to continuously handle incoming socket messages ---------------------
while (true) {
$changed_sockets = $read_sockets;
// socket_select is used here to see if there were any changes with the sockets that were connected before
// $num_changed_sockets is here so you can check to see if the change is true or not with a subsequent function
$num_changed_sockets = socket_select($changed_sockets, $write = NULL, $except = NULL, NULL);
// we run a foreach function on $changed_sockets to see whether it needs to be added (if new), determine the message it sent
// or determine if there was a socket disconnect
foreach($changed_sockets as $socket) {
// now if the $socket currently being checked is the $master socket, we need to run some checks
// if not then we will skip down to else and check the messages that were sent
if ($socket == $master) {
// socket_accept will accept any incoming connections on $master, and if true, it will return a resource id
// which we have set to $client. If this did not work then return an error, but if it worked, then add in
// $client to our $read_sockets array at the end.
if (($client = socket_accept($master)) < 0) {
echo "socket_accept() failed: reason: " . socket_strerror($msgsock) . "
";
continue;
} else {
array_push($read_sockets, $client);
}
} else {
// socket_recv just receives data from $socket as $buffer, with an integer length of 2048, and a mystery flag set to 0
// that mystery flag has no real documentation so setting it to 0 will solve it as others have done.
// we've also set it as a var $bytes in case we need to ensure data sending with socket_write, which is optional
$bytes = socket_recv($socket, $buffer, 2048, 0);
// if the $bytes we have is 0, then it is a disconnect message from the socket
// we will just search for it as an index and unset that socket from our $read_sockets and
// finish up with using socket_close to ensure it is closed off
if ($bytes == 0) {
$index = array_search($socket, $read_sockets);
unset($read_sockets[$index]);
socket_close($socket);
}else{
// we need to make sure $read_sockets isn't messed with, so setting up a new variable called $allclients
// will ensure this. We then shift the array so that our $master socket is not included to the count when
// we send our data to all the other sockets in $allclients.
$allclients = $read_sockets;
array_shift($allclients);
// just a simple call on our premade function 'send_Message' with $allclients, $socket (current one), and $buffer (the message)
send_Message($allclients, $socket, $buffer);
}
}
}
}
?>
Line 45:
if (($master = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) < 0) {
echo "socket_create() failed, reason: " . socket_strerror($master) . "
";
}
Also, if needed, this is the actionscript:
mySocket = new XMLSocket();
mySocket.onConnect = function(success) {
if (success) {
msgArea.htmlText += "<b>Server connection established!</b>";
} else {
msgArea.htmlText += "<b>Server connection failed!</b>";
}
};
mySocket.onClose = function() {
msgArea.htmlText += "<b>Server connection lost</b>";
};
XMLSocket.prototype.onData = function(msg) {
msgArea.htmlText += msg;
};
mySocket.connect(null, 3036);
//--- Handle button click --------------------------------------
function msgGO() {
if (inputMsg.htmlText != "") {
mySocket.send(inputMsg.htmlText+"
");
inputMsg.htmlText = "";
}
}
pushMsg.onRelease = function() {
msgGO();
};
I’m pretty sure for ip/ports and everything are set up correctly in the .bat and the .swf. According to my server variables, the port is 3036.
I really don’t have a clue on how to tackle this, as I have little PHP experience (just started the other day). A helpful hint in the right direction, or a discovered error that would help narrow it down would receive my deepest thanks.