php - HTTP 403 during request for URL info in Graph API -

i have wordpress blog. need index how many times each page shared , sort posts number of shares.

i made small script makes requests each page in blog,

 while ($posts->have_posts()) {                     $posts->the_post();                     $obj_fb = json_decode(file_get_contents('http://graph.facebook.com/?id=' . get_permalink()));                     $likes_fb = $obj_fb->shares;                     update_post_meta($post->id, 'meta_fb_likes', $likes_fb, false);                 } 

notice not use access tokens.

the script works number of pages, 50 or 100, when process large amount of pages, 300 or so, takes minute , returns execution error 403 graph api.

please advice i'm doing wrong.

you not using access tokens, , problem. must use access token call now. use app access token, that´s easiest 1 , don´t need authorize that.

how access tokens explained in docs:

• https://developers.facebook.com/docs/facebook-login/access-tokens
• http://www.devils-heaven.com/facebook-access-tokens/

edit: oh, see still work you, problem api rate limit. well, thing can avoid less calls. there no specific limit, in general "600 calls in 600 seconds" rule find in many threads.