title: php socket connections
body: <p>i'm trying to make a php tcp/ip server with the following code:</p>
  
  <pre><code>&lt;?php 
  // set some variables 
  $host = "localhost"; 
  $port = 3804; 
  
  // 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"); 
  
  // accept incoming connections 
  // spawn another socket to handle communication 
  $spawn = socket_accept($socket) or die("Could not accept incoming connection\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); 
  ?&gt;
  </code></pre>
  
  <p>i've randomly choose to work on the 3804 port and when i'm trying to telnet to my host on that port i'm not able to make a connection.. is there any more settings i need to make in the server that the php scripts hosted in, in order to allow my php script to listen to that port ?</p>