Track folder using php and inotify - php

Question

I need help to understand how i can make inotify work with PHP.
I have a main file where i call a instance of a inotify class i created.
This works for 30 seconds and then php throws a timeout error. In that time window it can in fact print information from new files and deleted ones. It kinda works but...
My questions for you guys are:
how can i make it persistent and stable. I mean i can set timeout requests for unlimited time but that doesn't seem to be a good practice. How to deal with this?
It's supposed to work like this? I call the function and the php
hangs in that loop until a new change happens?
My index.php
$teste = new Inotify_service();
$teste->add_watch('files');
class Inotify_service
{
private $instance;
private $watch_id;
public function __construct()
{
$this->instance = inotify_init();
stream_set_blocking($this->instance, 0); # this is needed so inotify_read while operate in non blocking mode
}
/**
* [add_watch Adds a new watch or modify an existing watch for the file or directory specified in pathname]
* #param [string] $pathname [description]
*/
public function add_watch($pathname)
{
$this->watch_id = inotify_add_watch($this->instance, $pathname, IN_CREATE | IN_DELETE);
while(true){
// read events
$events = inotify_read($this->instance);
// if the event is happening within our 'Files directory'
if ($events[0]['wd'] === $this->watch_id){
// a file was created
if($events[0]['mask'] === IN_CREATE){
printf("Created file: %s in Files directory\n", $events[0]['name']);
// a file was deleted
} else if ($events[0]['mask'] === IN_DELETE){
printf("Deleted file: %s in Files directory\n", $events[0]['name']);
}
}
}
// stop watching our directories
inotify_rm_watch($this->instance, $this->watch_id);
// close our inotify instance
fclose($this->instance);
}