How to correctly write and read an array to / from a file?

Question

PHP

I greet
you with the familiar array:

$array = array(
    "foo" => "bar",
    "bar" => "foo",
);

How to correctly write an array to a file and read it from there so that it is immediately an array? Is it possible to somehow do this without iterating over the values ​​so that it immediately becomes an array in PH?

Answer 1

serialize and unserialize

Answer 2

var_export