According to http://www.php.net/manual/en/function.socket-recv.php the socket_recv() parameters are as follows:

mixed socket_recv (resource socket, int len, int flags)


An attempt with:

$row = socket_recv($handle, 1024, PHP_NORMAL_READ);

Says Warning: socket_recv() expects exactly 2 parameters, 3 given in xxx on line 103

$row = socket_recv($handle, 1024);

Says Warning: socket_recv() expects parameter 2 to be resource, integer given in xxx on line 103

$row = socket_recv(1024, $handle);

Says Warning: socket_recv() expects parameter 1 to be resource, integer given in xxx on line 103