(PECL gupnp >= 0.1.0)
gupnp_control_point_callback_set — Set control point callback
$cpoint
, int $signal
, mixed $callback
[, mixed $arg
] )Set control point callback function for signal.
cpoint
A control point identifier, returned by gupnp_control_point_new().
signal
The value of signal. Signal can be one of the following values:
GUPNP_SIGNAL_DEVICE_PROXY_AVAILABLE
GUPNP_SIGNAL_DEVICE_PROXY_UNAVAILABLE
GUPNP_SIGNAL_SERVICE_PROXY_AVAILABLE
GUPNP_SIGNAL_SERVICE_PROXY_UNAVAILABLE
callback
The callback function for the certain signal. Typically, callback function
takes on two parameters. The proxy parameter's
identifier being the first, and the arg second.
arg
User data for callback.
Returns TRUE on success or FALSE on failure.
Example #1 Create new UPnP context and start browsing
<?php
function device_proxy_available_cb($proxy, $arg)
{
$info = gupnp_device_info_get($proxy);
$type = $info['device_type'];
$location = $info['location'];
printf("Device available:\n");
printf("type: %s\n", $type);
printf("location: %s\n", $location);
}
/* Create the UPnP context */
$context = gupnp_context_new();
if (!$context) {
die("Error creating the GUPnP context\n");
}
/* We're interested in everything */
$cp = gupnp_control_point_new($context, "ssdp:all");
gupnp_control_point_callback_set($cp,
GUPNP_SIGNAL_DEVICE_PROXY_AVAILABLE, 'device_proxy_available_cb');
/* Start for browsing */
gupnp_control_point_browse_start($cp);
?>
Issues E_WARNING with not valid callback function.