How does a foreach loop iterate through an object

Question

I am getting the contents of a facebook api call that will return all the posts made to a facebook group. So all the posts/comments on that post.

$data = json_decode(file_get_contents($url2));

foreach($data as $post){
    foreach $post as $subpost)
    {
     ...etc
    }
}

The problem I have here is that I will need to use 3 nested foreach loops in order to actually get the data I want. How do I get the first element of $data without having to use a foreach?

e.g. something like $data[0] (which doesn't work). How does a foreach loop iterate through an object so I can just manually write it since I only want 1 single object thats nested inside arrays.

edit object(stdClass)#1 (2) { ["data"]=> array(25) { [0]=> object(stdClass)#2 (10)...

i want to access the final object that contains 10 pieces of data.

sidenote: you can use json_decode($return_value, true), to make it an array if objects bothers you — user1978142
– user1978142, Commented Jun 2, 2014 at 12:09

zavg · Accepted Answer · 2014-06-02 12:07:06Z

2

$data = json_decode(file_get_contents($url2), true);

will return an array and you can access it via an index like $data[0].

edited Jun 2, 2014 at 12:07

zavg

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answered Jun 2, 2014 at 12:05

Kimmax

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Comments

ankit malik · Accepted Answer · 2014-06-02 12:08:19Z

1

Try to use like below - just pass true in second argument , it will convert object into array so you can use it as array.

$data = json_decode(file_get_contents($url2), true);
foreach($data as $post){
    foreach $post as $subpost)
    {
        ...etc
    }
}

answered Jun 2, 2014 at 12:08

ankit malik

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Comments

user3699274 · Accepted Answer · 2014-06-02 12:09:00Z

1

You should do

$data = json_decode(file_get_contents($url2),true);

To convert it to a array then try

$data[0]

answered Jun 2, 2014 at 12:09

user3699274

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Comments

Vaisakh Parannattil Cherul · Accepted Answer · 2014-06-02 12:04:24Z

0

You can use $post instead of $data.. indexing of $post depends on what kind of data you are receiving through json. If it is a 2-dimensional array,You can use $post[0]['index'] or if it is a single-dimensional array,you can use $post['index'], which will give you the exact indexed item.

answered Jun 2, 2014 at 12:04

Vaisakh Parannattil Cherul

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