// Server Side

<?php

ignore_user_abort(true);

set_time_limit(0);

$host = "127.0.0.1";

$port = 9898;


$socket = socket_create(AF_INET, SOCK_STREAM, 0) or die("Could not create socket\n");

socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);


socket_bind($socket, $host, $port);

socket_listen($socket);


while(true){

$spawn  = socket_accept($socket);

$data   = socket_read($spawn, 10240) or die("Could not read input\n");

$load = file_get_contents('test.txt');

file_put_contents('test.txt',$load.$data);

}

socket_close($socket);

?>


// Client Side


<?php


set_time_limit(0);


$host = "127.0.0.1";

$port = 9898;


$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or die("Could not create socket\n");

$connect = socket_connect($socket, $host, $port);

$sendmsg = "   this is a test "; 

socket_write($socket, $sendmsg,strlen($sendmsg));

socket_close($socket);


print file_get_contents('test.txt');

?>