How to create a directory with read and write permissions in php on linux?

Question

linux

Create directory in php

mkdir('test');
mkdir('test', 777);
mkdir('test', 0777);

all three methods create a directory with which nothing can be done because access rights do not allow, I write through the terminal
chmod -R 777 test
only then access is opened

Answer 1

You should at least occasionally read the comments section of the function you are using :)
Everything has been invented for you a long time ago