Question

Try to get arrays from a file like…

data.txt

Array
(
    [0] => 288
    [1] => 287
    [2] => 173
)

my.php

$data = file('data.txt');

foreach ($data as $id) {
    echo $id." - ";
}

Why its echo all arrays back ? like data.txt

Why not echo like 288 – 287 – 173 ?

CLOSED : I using JSON now

Answer 1

When saving your data, get the string representation using serialize:

$str = serialize($arr);

You can then use unserialize to decode your array:

$arr = unserialize(file(data.txt));