retrieve from array, simple php

Question

I have this:

print_r($response["member"]);

I need to retrieve name under levels, it's at the bottom, how should I write it: I thought of $response["member"][0]["Sequential"]["levels"]...? Also this number under levels wont be always the same.

Thank you!

Sequential doesn't have anything in it, try doing just Levels. — steinmas, Feb 11 '14 at 22:25

score 1 · Answer 1 · answered Feb 11 '14 at 22:27

1

<?php
   $nameInFirstLevelsElement = current($response["member"][0]["levels"])->Name
?>

This should work to retrieve the Name from the first levels element.

answered Feb 11 '14 at 22:27

Flixer

938
1
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score 1 · Answer 2 · edited May 23 '17 at 10:25

1

That empty space next to "Sequential" means it doesn't have a value. So that's not the one you're looking for.

Furthermore, one of those levels indicates "stdClass object", which means you can access its members via the -> operator.

Let's strip away everything that doesn't matter for a minute. I think it'll help you understand the data structure:

Array
(
    [0] => Array
        (
            [Levels] => Array
                (
                    [1391447566] => stdClass Object
                        (
                            [Level_ID] => 1391447566
                            [Name] => Team Membership
                        )
                )
        )

)

So this will work:

$object = $response["member"][0]["Levels"][1391447566];
$name = $object->Name;

Edit

If the index of Levels changes every time, then pull it apart a little bit more...

$levels = $response["member"][0]["Levels"];
$firstLevel = array_shift(array_values($levels));
$name = $firstLevel->Name;

See here for a good answer on getting the first element out of the $levels array: https://stackoverflow.com/a/3771228/266374

edited May 23 '17 at 10:25

Community

1
1

answered Feb 11 '14 at 22:28

Thomas Kelley

10,187
1
36
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Aha, this number "1391447566" will be diffrent every time, is it possible to somehow skip it or how would we do then ? – Goran Jakovljevic Feb 11 '14 at 22:30
`array_shift(array_values($levels))` -> why not simply `current($levels)`? – Flixer Feb 11 '14 at 22:51
@Flixer In case an associative array is returned. I don't know anything about this API, so I'd rather be safe than sorry. – Thomas Kelley Feb 12 '14 at 01:03
hey @ThomasKelley if i want to retrieve not one but all levels, how would it look like ? – Goran Jakovljevic Mar 12 '14 at 11:22

Th. Ma. · Accepted Answer · 2014-02-11T23:40:09.070

1

An answer might be to use array_walk_recursive by following the official documentation: http://www.php.net/manual/en/function.array-walk-recursive.php

<?php

$properties = new stdClass();
$properties->names = [];
function extractNames($levels, $key, $properties) {
    if (
        is_object($levels) &&
        array_key_exists('Name', get_object_vars($levels)) &&
        array_key_exists('Level_ID', get_object_vars($levels))
    ) {
        $properties->names[] = $levels->Name;
    }
}
array_walk_recursive($response, 'extractNames', $properties);
echo print_r($properties, true);

edited Feb 11 '14 at 23:40

answered Feb 11 '14 at 22:29

Th. Ma.

9,432
5
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I see, so if i have multiple names, it will add them to array. This is what i was looking for,thanks! – Goran Jakovljevic Feb 11 '14 at 22:51
There might be a reference missing somewhere (or perhaps replace $names array by another standard object such as `$names = new StdClass();` would help even more)... I'm trying to prove it working by building a reference array but you have the main idea! – Th. Ma. Feb 11 '14 at 22:53
hmm i am getting syntax error, unexpected T_FUNCTION – Goran Jakovljevic Feb 11 '14 at 22:55
Which version of PHP are you using? – Th. Ma. Feb 11 '14 at 22:56
it is php version 5.2.17 – Goran Jakovljevic Feb 11 '14 at 22:56
You might want to extract the function elsewhere if your version of PHP doesn't support closures and pass the function to array_walk_recursive as a callable like `array('function_name')` – Th. Ma. Feb 11 '14 at 22:57
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/47272/discussion-between-thierry-marianne-and-goran-jakovljevic) – Th. Ma. Feb 11 '14 at 22:58
1

Again big thanks Thierry, ill go with first one for now – Goran Jakovljevic Feb 11 '14 at 23:20
Well noted! Good luck! – Th. Ma. Feb 11 '14 at 23:22

Quixrick · Answer 4 · 2014-03-12T13:37:11.303

If the number under the 'Levels' array won't be the same, you can use a foreach to pull out the 'Name' information.

foreach ($response[0]['Levels'] AS $level_key => $level_val) {
    $level_name = $level_key->Name;
}

echo 'Name: '.$level_name;

If there is only going to be one element, then it will grab it. If there are multiple numbers under 'Levels', then it will loop through them and assign each one to '$level_name', overwriting any previous assignments. In other words, only the last one it finds will be captured.

EDIT: In the example, I mistakenly tried to grab the Name from the $key instead of the $val. This is the correct method:

foreach ($response[0]['Levels'] AS $level_key => $level_val) {
    $level_name = $level_val->Name;
}

echo 'Name: '.$level_name;

Here is a demo of the working code

Well, you're correct. I have a typo in my code. You should be getting the `Name` from the `val`, not the `key`. I will make an update in my post with the correct syntax. — Quixrick, Mar 12 '14 at 13:17

retrieve from array, simple php

4 Answers4