Question

 $likes = $facebook->api("/me/likes");
 foreach($likes['data'] as $page_likes) {
    if($page_likes['id'] == "someid") {

    }
  }

Is there any simple way to find it instead of looping those hundreds, thousands likes?

Answer 1

Best method (to answer questions like this): Read documentation …!

https://developers.facebook.com/docs/reference/api/user/#likes:

“You can check if a User likes a specific page by issuing an HTTP GET to /PROFILE_ID/likes/PAGE_ID. […] This will return, in the data array, an object with the following fields if the user is connected to the page: […] If the user is not connected to the page, the data array will be empty.”