Which 802.11ac AP to choose for a small office?

Question

Network administration

There is a need to change the access point in a small office for 15-20 clients. Because there are already machines on the network that support 802.11ac, I want the point to also support this standard.
Search today gives out either all-in-one routers for the home, or corp. controller solutions.
The office area is small, with a margin covered by one point (at the moment Netgear WNAP210), so I see no reason to use a separate controller.
Are there already suitable devices on the market?

Answer 1

It’s clear to everyone that a home or a business point will not normally be able to hold 20 clients, but how can such a Ubiquiti UniFi AC
habrahabr.ru/post/194116 be read

Answer 2

I have Airport Extreme. Convenience and stability. But there are few options for tuning, from a series of set and forget, a step to the side is a wall.
The description says that it supports up to 50 clients, I think 30 should definitely withstand.
The signal is good, it breaks through two concrete walls and shows HD movies.
In my humble opinion, it will cost less than analogues with support for 30+ clients.

Answer 3

php.net/manual/ru/book.simplexml.php

Answer 4

Namespaces are needed.
Dig here: php.net/manual/ru/simplexmlelement.getnamespaces.php
There are examples in the comments.