Undefined offset in post with array

Question

I've been struggling with this stuff for two days, I need help, lol. I'm trying to handle a post that has some inputs as an array.

To understand the structure of the array, here's a print_r($_POST)

print_r($_POST):

Array
(
[prov] => 49
[almacen] => 1
[fecha] => 24-01-2014
[a] => Array
    (
        ['1545'] => Array
            (
                [0] => 1
            )

        ['908'] => Array
            (
                [0] => 1
            )

    )

[p] => Array
    (
        ['1545'] => Array
            (
                [0] => 0.6
            )

        ['908'] => Array
            (
                [0] => 0
            )

    )

[d] => Array
    (
        ['1545'] => Array
            (
                [0] => 20
            )

        ['908'] => Array
            (
                [0] => 0
            )

    )

[e] => Array
    (
        ['1545'] => Array
            (
                [0] => 2
            )

        ['908'] => Array
            (
                [0] => 0
            )

    )

)

If I do a print_r($_POST["p"]) this is what I get (as expected):

Array
(
['1545'] => Array
    (
        [0] => 0.6
    )

['908'] => Array
    (
        [0] => 0
    )

)

but, if I try to go further with print_r($_POST["p"][0]), I receive a:

Notice: Undefined offset: 0

or print_r($_POST["p"]["1545"]) also fails with undefined offset.

How can I get $_POST["p"]["1545"] not returning undefined.

Thanks!

Answer 1

Try to get 1545 with '

print_r($_POST["p"]["'1545'"]);

it seems like '1545' is the actual key for array $_POST['p']

it means that you have error in your HTML

Answer 2

Try this

print_r($_POST["p"]["1545"][0])