PHP How to echo certain position of associative array?

Question

My array looks like this:

Array
    ( [myarr] => Array (
                [504] => 2
                [508] => 25
        )
    )

Is it possible to echo a certain position of this array? I have tried:

echo $_SESSION['myarr'][0][0];

I can't seem to get anything to echo back.

EDIT: to be more specific.. Is it possible to echo it based on numeric index?

What do you want to get? There is no key `0` in `$_SESSION['myarr']`. — xdazz, Aug 07 '12 at 02:33
There is no key `[0]` Your array contains `$_SESSION['myarr'][504]` and 508 — Michael Berkowski, Aug 07 '12 at 02:33

score 5 · Accepted Answer · answered Aug 07 '12 at 02:47

Use array_keys() to get the keys into an array. Then access the 2D array using indexes in the keys array. Not that this is the best way to do this but it is a way to use numeric indexes to solve your problem.

$keys = array_keys($_SESSION["myarr"]);
$zero = $_SESSION["myarr"][$keys[0]];

score 2 · Answer 2 · answered Aug 07 '12 at 02:33

2

It's just a regular nested array. You use the index keys just as you normally would:

echo $_SESSION['myarr'][504];  //2

echo $_SESSION['myarr'][508];  //25

answered Aug 07 '12 at 02:33

John Conde

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504 and 508 are numeric indexes. You can't echo the 0 index or the 1 because they are undefined – Greg Rozmarynowycz Aug 07 '12 at 02:34
504 and 508 are the numeric index – Aug 07 '12 at 02:34
@Norse 504 and 504 _are_ the numeric indices. If you want to renumber them sequentially from zero use `array_values($_SESSION['myarr'])` – Michael Berkowski Aug 07 '12 at 02:35
Those are numeric indexes. If you want them to be 0, 1,2, etc, you need to create a new array with those new keys containing the old values. `array_values()` can do that for you. – John Conde Aug 07 '12 at 02:35

score 2 · Answer 3 · edited May 23 '17 at 11:48

2

Have a look at Get the first element of an array.

The following should work (untested, so no guaranties):

echo array_shift(array_values($_SESSION))[0][0];

edited May 23 '17 at 11:48

Community

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answered Aug 07 '12 at 02:35

mariusnn

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score 1 · Answer 4 · answered Aug 07 '12 at 02:33

1

Yes it is possible

print $array['myarr'][508]; // 25

answered Aug 07 '12 at 02:33

Nazariy

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score -2 · Answer 5 · answered Aug 07 '12 at 02:38

-2

This is getting ugly.

$i = 1;
foreach ($myarr as $array) {
    if ($i == 2) echo $array;
    $i++;
}

answered Aug 07 '12 at 02:38

Dave Kiss

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PHP How to echo certain position of associative array?

5 Answers5