note 44021 added to function.socket-accept

i'm new to php, can anyone help me on this 'server socket' <?php $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); // Create our socket. socket_bind($socket,'localhost',15000); //bind the socket to our IP address, on port ....... socket_listen($socket); // listen for any incoming connections while($connection = socket_accept($socket)) // accept any incoming connection and write to the socket. { socket_write($connection,'You\'ve successfully connected to my computer!\r\n'); $res=socket_recv($socket,$buffer,1024,0); if ($res<=0){ echo "error"; } else echo $res; } socket_close( $socket ); ?> i'm getting different errors at different times, i'm stuck up. Warning: socket_bind() unable to bind address [0]: Only one usage of each socket address (protocol/network address/port) is normally permitted. in c:\apache\apache\htdocs\final\server.php on line 3 Warning: socket_listen() unable to listen on socket [0]: An invalid argument was supplied. in c:\apache\apache\htdocs\final\server.php on line 4 Warning: socket_accept() unable to accept incoming connection [0]: An invalid argument was supplied. in c:\apache\apache\htdocs\final\server.php on line 5 Warning: socket_accept() unable to accept socket connection [0]: The operation completed successfully. in c:\apache\apache\htdocs\final\server.php on line 5 ---- Manual Page -- http://www.php.net/manual/en/function.socket-accept.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+44021 Delete -- http://master.php.net/manage/user-notes.php?action=delete+44021&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+44021&report=yes Search -- http://master.php.net/manage/user-notes.php