When it comes to php.net, there's some good documentation, but then you hit a page with none.
This just happened to me, and I was looking for the values (integers) of the constants for inotify
I've commented on there as well, but here are the values (as they exist on my vagrant box)
Text Snippet:
IN_ACCESS = 1
IN_MODIFY = 2
IN_ATTRIB = 4
IN_CLOSE_WRITE = 8
IN_CLOSE_NOWRITE = 16
IN_OPEN = 32
IN_MOVED_FROM = 64
IN_MOVED_TO = 128
IN_CREATE = 256
IN_DELETE = 512
IN_DELETE_SELF = 1024
IN_MOVE_SELF = 2048
IN_UNMOUNT = 8192
IN_Q_OVERFLOW = 16384
IN_IGNORED = 32768
IN_CLOSE = 24
IN_MOVE = 192
IN_ALL_EVENTS = 4095
IN_ONLYDIR = 16777216
IN_DONT_FOLLOW = 33554432
IN_MASK_ADD = 536870912
IN_ISDIR = 1073741824
IN_ONESHOT = 2147483648
By the way, this post doesn't mean it's a good idea to use inotify with PHP, but I need a very specific thing.
Update: Here's the link to the PHP.net page: http://www.php.net/manual/en/inotify.constants.php