how can I retrieve specific data from an array

Beginners - Learning PHP
#1

Hi all, I’m starting to use php for integrate my app with facebook, anyway,

I have this array:

( [data] => Array ( [0] => stdClass Object ( [name] => Lisa [id] => 1383095935338077 ) [1] => stdClass Object ( [name] => Karen [id] => 1375898729393793 ) ) [paging] => stdClass Object ( [next] => https://graph.facebook.com/v2.2/1378922702423461/friends?access_token=CAAsTF4JGDmCO6iq ) [summary] => stdClass Object ( [total_count] => 2 ) )

and I would like to retrive a data of the user like:

Lisa|1383095935338077|Karen|1375898729393793…

I know I have to make a loop, and I have this script:

[php]

$result = $me->asArray();

// Get user’s friends
$friends = $result[‘data’];

foreach ($friends as $key => $value) {
echo $friends[$key] = (array)$value; //this retrieve just “Array”
echo “|”;
//echo $friends[0][‘id’]; //this retrieve the id of Lisa, but repeat two times…
}
[/php]

someone can help me please?

thank you very much

#2

Well, not tested, but, try this way:
[php]
$result = $me->asArray();

// Get user’s friends
$friends = $result[‘data’];

foreach ($friends as $friend) {
echo $friend[‘name’] . “|” . $friend[‘id’];
}
[/php]
The array is associated to [number][name][id], so you have to pull it out that way.
If you break up the $friends into $key and $value, then you have to pull it out without the index.
Something like echo $value; But, that could cause issues as it would dump all the values…

Let us know if that works for you…

#3

You have an array of objects, you could just use them as is. I’m guessing $me also contains an object, no need to convert that either.

This should replace everything you pasted

[php]foreach ($me->data as $friend) {
echo $friend->name . ’ |’ . $friend->id . ‘|’;
}[/php]

If not then I might have been wrong about $me

[php]$result = $me->asArray();

foreach ($result[‘data’] as $friend) {
echo $friend->name . ’ |’ . $friend->id . ‘|’;
}[/php]

Note how we use [‘key’] to access array keys, and ->property to access properties of an object.

#4

Thanks JimL as I forgot to add in the ending .’|’; …

#5

Ah, didnt even notice :stuck_out_tongue:

#6

Thank you very much for the reply!!!

thank you very much!!! it’s work!!! I try just last one, and is working!! thank you very much! I spent days to find some solution…I see a lot of example but never works for me… I’m not very good with php!!

I’m curios about the difference of the last two…

If I understand, $friends is an array right? for each friends (x,y repeat? = the height of the array? (2))

$result = $me->asArray(); this convert the result in array?

thank you!! really, :smiley:

#7

Yes, friends is an array (list) containing objects. Which are converted to a pure array containing arrays by.executing that function (toArray())

If you want a visual representation of the data you have then do this

[php]echo ‘

’;

print_r($friends);[/php]

It will pretty print the content of the variable and you can use it for simple debugging. It helps a lot in seeing how the data is structured
#8

thank you very much :slight_smile:

#9

Another problem ???

I’m trying to retrieve another array:

this is the array I get with: print_r ($resultScore);

Array ( [0] => stdClass Object ( [user] => stdClass Object ( [id] => 1378518079120107 [name] => Mary Amhheghcggci ) [score] => 267089 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [1] => stdClass Object ( [user] => stdClass Object ( [id] => 1374605922846447 [name] => Harrylollo Baosky ) [score] => 76102 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [2] => stdClass Object ( [user] => stdClass Object ( [id] => 1382836682021405 [name] => Luca Rosenthalstein ) [score] => 35297 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [3] => stdClass Object ( [user] => stdClass Object ( [id] => 1374550636185549 [name] => Paolo Warmanberg ) [score] => 31920 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565) ) )

and I use this script:

[php]$session = new \Facebook\FacebookSession($accessToken);

$requestScore = (new \Facebook\FacebookRequest( $session, ‘GET’, ‘/760699587345565/scores’))->execute()->getGraphObject(\Facebook\GraphUser::className());

$resultScore = $requestScore ->asArray();
$friendsScore = $resultScore[‘data’];
print_r ($resultScore);

foreach ($resultScore[‘data’] as $friendsScore) {
echo $friendsScore->name . ’ |’ . $friendsScore->id . ‘|’;
}[/php]

do you know why I get this error?

Warning: Invalid argument supplied for foreach() in /index.php on line 82  ???

I tried to change a lot of thing…but doesn’t works… I see the difference about ( [data] => Array ( and in this other array, I don’t understand why doesn’t appear… isn’t this script to do that:?

[php]$friendsScore = $resultScore[‘data’];[/php]

Thank you very much, and sorry

#10

there is no ‘data’ key directly in the top level, so $resultscore[‘data’] doesn’t exist.

#11

thank you for the reply, I have to change the order of [‘data’]? why in this new array, the script doesn’t works well?

#12

The result you get doesn’t seem to contain the ‘data’ part at all, so just remove it. It seems like the previous request you did returned something like

[php][
‘status’ => ‘ok’,
‘data’ => [
‘your array with results here’
]
][/php]

while this request returns

[php][
‘your array with results here’
][/php]

#13

ok, if I run this script:

[php]$session = new \Facebook\FacebookSession($accessToken);

$requestScore = (new \Facebook\FacebookRequest( $session, ‘GET’, ‘/760699587345565/scores’))->execute()->getGraphObject(\Facebook\GraphUser::className());

//$resultScore = $requestScore ->asArray();
//$friendsScore = $resultScore[‘data’];
print_r ($requestScore);[/php]

the print_r return this:

Facebook\GraphUser Object ( [backingData:protected] => Array ( [0] => stdClass Object ( [user] => stdClass Object ( [id] => 1378518079120107 [name] => Mary Amhheghcggci ) [score] => 267089 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [1] => stdClass Object ( [user] => stdClass Object ( [id] => 1374605922846447 [name] => Harrylollo Baosky ) [score] => 76102 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565) ) ) )

and if I run the others 2 lines:

$resultScore = $requestScore ->asArray();
$friendsScore = $resultScore[‘data’];

the Facebook\GraphUser Object ( [backingData:protected] => disappear, so, I’m missing something…this isn’t an correct array? It’s possible to fix it?

thanks :slight_smile:

#14

I’m sadly unfamiliar with the facebook v4 api for php

if you do this, what do you get?

[php]$session = new \Facebook\FacebookSession($accessToken);

$requestScore = (new \Facebook\FacebookRequest( $session, ‘GET’, ‘/760699587345565/scores’))->execute()->getGraphObject(\Facebook\GraphUser::className());

$resultScore = $requestScore ->asArray();
//$friendsScore = $resultScore[‘data’];
echo ‘

’; // this is what actually makes the dump below pretty printed

print_r ($resultScore);[/php]
#15

this:

Array ( [0] => stdClass Object ( [user] => stdClass Object ( [id] => 1378518079120107 [name] => Mary Amhheghcggci ) 
        [score] => 267089
        [application] => stdClass Object
            (
                [name] => EatSquare
                [namespace] => eatsquare
                [id] => 760699587345565
            )

    )

[1] => stdClass Object
    (
        [user] => stdClass Object
            (
                [id] => 1374605922846447
                [name] => Harrylollo Baosky
            )

        [score] => 76102
        [application] => stdClass Object
            (
                [name] => EatSquare
                [namespace] => eatsquare
                [id] => 760699587345565
            )

    )

[2] => stdClass Object
    (
        [user] => stdClass Object
            (
                [id] => 1382836682021405
                [name] => Luca Rosenthalstein
            )

        [score] => 35297
        [application] => stdClass Object
            (
                [name] => EatSquare
                [namespace] => eatsquare
                [id] => 760699587345565
            )

    )

[3] => stdClass Object
    (
        [user] => stdClass Object
            (
                [id] => 1374550636185549
                [name] => Paolo  Warmanberg
            )

        [score] => 31920
        [application] => stdClass Object
            (
                [name] => EatSquare
                [namespace] => eatsquare
                [id] => 760699587345565
            )

   )

)

in order, If I follow https://developers.facebook.com/docs/graph-api/reference/v2.2/user/scores this, and I change the script with this new one:

[php]$requestScore = new FacebookRequest( $session, ‘GET’, ‘/760699587345565/scores’);
$responseScore = $requestScore->execute();
$graphObject = $responseScore->getGraphObject();

//$requestScore = $responseScore ->asArray();
//$friendsScore = $resultScore[‘data’];
print_r ($responseScore);[/php]

I have this with print_r:

Facebook\FacebookResponse Object ( [request:Facebook\FacebookResponse:private] => Facebook\FacebookRequest Object ( [session:Facebook\FacebookRequest:private] => Facebook\FacebookSession Object ( [accessToken:Facebook\FacebookSession:private] => Facebook\Entities\AccessToken Object ( [accessToken:protected] => CAAKz2iyvPJ0BAGxs2ybaEp9kIQditnIQXZALGTSTyP1jXybxb1x56pAo6FWKqL6fDYsp4YNwpcLGUMNktaS2Fv0bt6l527ZBIjSE2dnn2SRwZC216NdoobZASle3BeuwCjajUDE1BeyUD6T9Yfs5CmeaI1fOIBgZBj0unfFgCZAaMFz7oZCycCTEd1ZBe6LH4NyuElpyfJlNthfWlZCi3McROrnL4seC3TekZD [machineId:protected] => [expiresAt:protected] => DateTime Object ( [date] => 2015-02-18 16:00:00.000000 [timezone_type] => 3 [timezone] => America/Chicago ) ) [signedRequest:Facebook\FacebookSession:private] => ) [method:Facebook\FacebookRequest:private] => GET [path:Facebook\FacebookRequest:private] => /760699587345565/scores [params:Facebook\FacebookRequest:private] => Array ( [access_token] => CAAKz2iyvPJ0BAGxs2ybaEp9BeyUD6T9Yfs5CmeaI1fOIBgZBj0unfFgCZAaMFz7oZCycCTEd1ZBe6LH4NyuElpyfJlNthfWlZCi3McROrnL4seC3TekZD [appsecret_proof] => 14d7b1e946d396c16c7779046065c332aac889254defb54403b0ef59fcba81dd ) [version:Facebook\FacebookRequest:private] => v2.2 [etag:Facebook\FacebookRequest:private] => ) [responseData:Facebook\FacebookResponse:private] => stdClass Object [b]( [data] => Array[/b] ( [0] => stdClass Object ( [user] => stdClass Object ( [id] => 1378518079120107 [name] => Mary Amhheghcggci ) [score] => 267089 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [1] => stdClass Object ( [user] => stdClass Object ( [id] => 1374605922846447 [name] => Harrylollo Baosky ) [score] => 76102 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [2] => stdClass Object ( [user] => stdClass Object ( [id] => 1382836682021405 [name] => Luca Rosenthalstein ) [score] => 35297 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [3] => stdClass Object ( [user] => stdClass Object ( [id] => 1374550636185549 [name] => Paolo Warmanberg ) [score] => 31920 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [4] => stdClass Object ( [user] => stdClass Object ( [id] => 1374474482860205 [name] => Linda Greeneescu ) [score] => 5558 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [5] => stdClass Object ( [user] => stdClass Object ( [id] => 1382608605376929 [name] => Marika Cecol ) [score] => 5071 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [6] => stdClass Object ( [user] => stdClass Object ( [id] => 1380890392215920 [name] => Bob Amhhdiagjhfg ) [score] => 4869 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [7] => stdClass Object ( [user] => stdClass Object ( [id] => 1380761488895509 [name] => Barbara Amhhejacjhda ) [score] => 4297 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [8] => stdClass Object ( [user] => stdClass Object ( [id] => 1380688315569460 [name] => Susan Amhhdiadjhgf ) [score] => 4033 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [9] => stdClass Object ( [user] => stdClass Object ( [id] => 1377665785873042 [name] => Mike Amhhhikfead ) [score] => 1237 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [10] => stdClass Object ( [user] => stdClass Object ( [id] => 1374577759516072 [name] => Giacomo Baowitz ) [score] => 520 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) [11] => stdClass Object ( [user] => stdClass Object ( [id] => 1379395622366168 [name] => Virginia Warmansky ) [score] => 366 [application] => stdClass Object ( [name] => EatSquare [namespace] => eatsquare [id] => 760699587345565 ) ) ) ) [rawResponse:Facebook\FacebookResponse:private] => {"data":[{"user":{"id":"1378518079120107","name":"Mary Amhheghcggci"},"score":267089,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1374605922846447","name":"Harrylollo Baosky"},"score":76102,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1382836682021405","name":"Luca Rosenthalstein"},"score":35297,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1374550636185549","name":"Paolo Warmanberg"},"score":31920,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1374474482860205","name":"Linda Greeneescu"},"score":5558,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1382608605376929","name":"Marika Cecol"},"score":5071,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1380890392215920","name":"Bob Amhhdiagjhfg"},"score":4869,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1380761488895509","name":"Barbara Amhhejacjhda"},"score":4297,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1380688315569460","name":"Susan Amhhdiadjhgf"},"score":4033,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1377665785873042","name":"Mike Amhhhikfead"},"score":1237,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1374577759516072","name":"Giacomo Baowitz"},"score":520,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}},{"user":{"id":"1379395622366168","name":"Virginia Warmansky"},"score":366,"application":{"name":"EatSquare","namespace":"eatsquare","id":"760699587345565"}}]} [etagHit:Facebook\FacebookResponse:private] => [etag:Facebook\FacebookResponse:private] =>

I see an array and a json format?? I edited this original script with the first one I had post… and I retrive just the Array, but in this one, I can see the [data] => Array, this is should the correct way right? but I don’t know how I can retrieve the array from this last quote… I tried the method

->asArray(); but doesn’t works…

thank you :slight_smile:

#16

Ok. What is your desired output?

#17

I would like to have the output like in the first array

[php] foreach ($friends as $friend) {
echo $friendsScore->name . ’ |’ . $friendsScore->id . ‘|’. $friendsScore->score. ‘|’;
}[/php]

I’m curious how is possible to extrapolate the array in the last quote and get works the foreach part :slight_smile:

thank you very much, really :slight_smile:

#18

[php]$session = new \Facebook\FacebookSession($accessToken);

$requestScore = (new \Facebook\FacebookRequest( $session, ‘GET’, ‘/760699587345565/scores’))->execute()->getGraphObject(\Facebook\GraphUser::className());

$results = $requestScore ->asArray();
foreach ($results as $result) {
echo $result->user->name . ’ |’ . $result->user->id . ‘|’. $result->score . ‘|’;
}[/php]

#19

thank you very much!! I see the difference :smiley:

#20

I also unfamiliar on how to use this feature on my facebook page which is about http://naturessmile.com and tips to reverse gums recession.

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