(PECL gupnp >= 0.1.0)
gupnp_context_timeout_add — Sets a function to be called at regular intervals
$context
, int $timeout
, mixed $callback
[, mixed $arg
] ) : boolSets a function to be called at regular intervals.
contextA context identifier, returned by gupnp_context_new().
timeoutA timeout in miliseconds.
callback
The callback function calling every timeout period of time.
Typically, callback function takes on arg parameter.
arg
User data for callback.
成功时返回 TRUE， 或者在失败时返回 FALSE。
Example #1 Create new UPnP context and set callback
<?php
$user_data = "user data";
function timeout_cb($arg)
{
printf("Call timeout_cb, user data: '%s'", $arg);
return true;
}
/* Create the UPnP context */
$context = gupnp_context_new();
if (!$context) {
die("Error creating the GUPnP context\n");
}
/* Create root device */
$dev = gupnp_root_device_new($context, "/devicedesc.xml");
/* Set callback for timeout */
gupnp_context_timeout_add($context, 5000, "timeout_cb", $user_data);
/* Run the main loop */
gupnp_root_device_start($dev);
?>
Issues E_WARNING with not valid callback function.