Question

im trying to make facebook upload photo with random tag friend.
the program was run correctly but i got stack on the array

$args = array(  
    'message' => 'Test Tags Text',  
    "access_token" => $access_token,  
    "image" => $files,
    'tags'    => $id,
); 

the $id is array friend list here the format

$friends = $facebook->api('/me/friends'); 
$frand = array_rand( $friends['data'], 20 );

foreach($frand as $fid){ 
    $id[$fid]['tag_uid'] =  $friends['data'][$fid]['id'];
$id[$fid]['x']  = 0;
$id[$fid]['y']  = 0;
}

Answer 1

Update 2:

Please read about arrays: PHP manual arrays. Every element in an array has a key even if you don’t specify it. You cannot have an element in an array without key.

There is a difference between defining an array, where you don’t have to specify keys, and printing the array, which gives you a textual representation of the array.

Update: So it seems it has to be

$args['tags'] = $id;

$id is already an array. If you pass it to array, it will create a new array with the $id as first element.

---

Old answer:

You are already talking about merge. Have you had a look at array_merge^[docs]?

$args['tags'] = array_merge($args['tags'], $id);

---

Of course, $args['tags'] = array( $id ); does not work. It

1. Overwrites the already existing value of $args['tags'].
2. As you already noticed, it adds $id which is already an array, to an array. If $args['tags'] does not have a value, you could just do $args['tags'] = $id;.