api.trakt.php

<?php
$user = "laim";
$key = "";
$type = "history"; //history or watching

// You need to register an API app here https://trakt.tv/oauth/applications to get the API Key (ClientID)

function traktAPI($user, $key, $type) {
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, "https://api.trakt.tv/users/$user/$type");
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
  curl_setopt($ch, CURLOPT_HEADER, FALSE);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    "Content-Type: application/json",
    "trakt-api-version: 2",
    "trakt-api-key: $key"
  ));
  $response = curl_exec($ch);
  curl_close($ch);
  return json_decode($response, true);
}

var_dump(traktAPI($user, $key, $type));
?>