Socket connection lost
Posted: Tue Aug 05, 2003 5:16 am
Hello everybody,
I read the Socket Programming tutorial and tried to execute the simple server example.
When i telnet to the ip-address and port, it connects, and when i input a string, it losts the connection.could somebody please tell me why is this happening. I'm executing this script from the command prompt.
Thanks in advance.
Heres the script
I read the Socket Programming tutorial and tried to execute the simple server example.
When i telnet to the ip-address and port, it connects, and when i input a string, it losts the connection.could somebody please tell me why is this happening. I'm executing this script from the command prompt.
Thanks in advance.
Heres the script
Code: Select all
<?php
// set some variables
$host = "ip-address of the machine";
$port = 1234;
// don't timeout!
set_time_limit(0);
// create socket
$socket = socket_create(AF_INET, SOCK_STREAM, 0) or die("Could not create socket\n");
// bind socket to port
$result = socket_bind($socket, $host, $port) or die("Could not bind to socket\n");
// start listening for connections
$result = socket_listen($socket, 3) or die("Could not set up socket listener\n");
echo "waiting for connections....\n";
// accept incoming connections
// spawn another socket to handle communication
$spawn = socket_accept($socket) or die("Could not accept incoming connection\n");
echo "Received connection request\n";
// read client input
$input = socket_read($spawn, 1024) or die("Could not read input\n");
// clean up input string
$input = trim($input);
// reverse client input and send back
$output = strrev($input) . "\n";
socket_write($spawn, $output, strlen ($output)) or die("Could not write output\n");
// close sockets
socket_close($spawn);
socket_close($socket);
?>