PECL inotify example for close_write on watch directory

notify_watch.php

<?php

$fd = inotify_init();

$watch_descriptor = inotify_add_watch($fd, './watch', IN_CLOSE_WRITE);

while (true) {
  $events = inotify_read($fd);

  foreach ($events as $event) {
    print_r($event);
  }
}