CODEWITHSUNDEEP
phpjsonfacebookfacebook-graph-api
user6078343
user6078343

Reputation:

Facebook Graph API: Can only display 100 posts

I have just began to start dabbling in JSON and Facebook's Graph API. With the following I've been able to pull posts from my Facebook page:

$page_id = '???';
$access_token = '???';

$json_object = @file_get_contents('https://graph.facebook.com/' . $page_id . 
'/posts?access_token=' . $access_token . '&limit=100');
$fbdata = json_decode($json_object);

foreach ($fbdata->data as $post ) {
    $posts .= '<p><a href="' . $post->link . '">' . $post->story . '</a></p>';
    $posts .= '<p><a href="' . $post->link . '">' . $post->message . '</a></p>';
    $posts .= '<p>' . $post->description . '</p>';
    $posts .= '<br />';
}

echo $posts;

However Facebook doesn't allow any more than 100 posts in one JSON request. Is there a way around this by making multiple requests or should I be going about this in a different way entirely?

Does anybody know how I could display all existing posts from my Facebook page?

Upvotes: 0

Views: 118

Answers (1)

user6078343
user6078343

Reputation:

An infinite amount of posts can be displayed by paginating them like so:

//Set page variable/page number

if($_GET['page'] == 0) {
    $page = 1;
}
else {
    $page = $_GET['page'];
}

//Page increments/decrements
$next_page = intval($page + 1);
$prev_page = intval($page - 1);

//Set offset if it isn't the first page
if ($page > 1) {
    $offset = $page * 5 - 5;
} 

//Facebook Dev details
$page_id = '???';
$access_token = '???';

//Get JSON for specified page
$json_object = @file_get_contents('https://graph.facebook.com/' . $page_id . 
'/posts?access_token=' . $access_token . '&limit=5' . '&offset=' . $offset);

//Interpret the data
$fb_data = json_decode($json_object);

foreach ($fb_data->data as $post ) {
    $posts .= '<p><a href="http://facebook.com/' . $post->id . '">' . $post->story . '</a></p>';
    $posts .= '<p><a href="http://facebook.com/' . $post->id . '">' . $post->message . '</a></p>';
    $posts .= '<p>' . $post->description . '</p>';
    $posts .= '<br />';
}

//Display posts
echo $posts;

//If page isn't the first page add previous button
if ($page > 1) {
    echo '<a href="?page=' . $prev_page . '">' . 'Previous' . '</a>';
} 

//Total offset of posts on next page
$next_page_offset = $offset + 5;

//Make next page object
$json_next_page_object = @file_get_contents('https://graph.facebook.com/' . $page_id . 
'/posts?access_token=' . $access_token . '&limit=5' . '&offset=' . $next_page_offset);

//Get JSON for next page
$fb_next_data = json_decode($json_next_page_object);

//Echo next button if size of next data is greater than one
if( sizeof( $fb_next_data->data) > 0 ) {
    echo '<a href="?page=' . $next_page . '">' . 'Next' . '</a>';
}

Probably needs some improvement, but it works as desired so far.

I hope what I've got so far can help others in making a basic and easy to manage Facebook feed :]

Upvotes: 1

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