Question

I have an array that looks like this:

Array
(
[0] => Array
    (
        [pizza] => Calzone
        [votes] => 1
        [id] => 1
    )

[1] => Array
    (
        [pizza] => Margherita
        [votes] => 5
        [id] => 2
    )

[2] => Array
    (
        [pizza] => Pepperoni
        [votes] => 9
        [id] => 3
    )

[3] => Array
    (
        [pizza] => Quattro Formaggi
        [votes] => 3
        [id] => 4
    )

[4] => Array
    (
        [pizza] => Sloppy Giuseppe
        [votes] => 7
        [id] => 5
    )

)

And when I do this:

function getPizza () {
    $id = 3;

    return array_filter($myArrayAsAbove, function ($arr) use ($id) {
        return ($arr['id'] == $id);
    });
}

I get this:

[2] => Array
    (
        [pizza] => Pepperoni
        [votes] => 9
        [id] => 3
    )

Which I’m sure is correct, but really I’d like this:

[0] => Array
    (
        [pizza] => Pepperoni
        [votes] => 9
        [id] => 3
    )

Notice the 0 instead of the 2.

Could someone help me find a solution and if you’re really nice, explain a little bit about why this is happening, and how it can be fixed – so I’ll know for next time!

Answer 1

array_filter keeps the array keys. If you don’t want them, array_values gives you only the values “wrapped in a new array”:

return array_values(array_filter($pizzen, function ($arr) use ($id) {
    return $arr['id'] == $id;
}));