PHP create folder if it does not exist

Question

I am creating a medium size application.

This application consists of a lot of products.

Now these products have many images (one product can have 5 - 6 imag

Answer 1

Try this:

if (!file_exists('path/to/directory')) {
    mkdir('path/to/directory', 0777, true);
}

1) Does this automaticly create a new folder if it doesnt already exist. => file_exists and mkdir

2) how can i give permission to a newly created folder so that i avoid this problem => 0777