Facebook图形api json_decode错误

Question

Playing around with the Facebook Graph API and the Facebook PHP SDK. Having a problem using json_decode(), I keep getting the error "json_decode() expects parameter 1 to be string".

if ($fbme) {
        try {
            $pages = $facebook->api('/me/accounts');
        }
        catch(Exception $o) {
            d($o);
        }
}


$pages = json_decode($pages, true);
        foreach ($pages->data as $page) {
            echo $page->name;
            echo $page->category;
            echo $page->id;
        }

Answer 1

The api method already decodes the response for you. You don't have to use json_decode on it, since it's already an array.

foreach ($pages['data'] as $page) {
    echo $page['name'];
    echo $page['category'];
    echo $page['id'];
}