&reftitle.intro; The inotify extension exposes the inotify functions inotify_init, inotify_add_watch and inotify_rm_watch. As the C inotify_init function returns a file descriptor, PHP's inotify_init returns a stream resource, usable with standard stream functions, like stream_select, stream_set_blocking and fclose. inotify_read replaces the C way of reading inotify events. &reference.inotify.setup; &reference.inotify.constants; &reference.inotify.reference;