public function getUser($login)
{
if (empty($login)) {
return new AnonymousUser();
}
//use the cache if available. Don't use the cache for the special me user
if ($this->useCache && $login != 'me') {
$cacheFilename = "user_$login";
if ($this->cache === NULL) {
$this->cache = new DiskCache(CACHE_DIR . "/Facebook", $this->cacheLifetime, TRUE);
$this->cache->setSuffix('.json');
$this->cache->preserveFormat();
}
if ($this->cache->isFresh($cacheFilename)) {
$data = $this->cache->read($cacheFilename);
} else {
//get the data
$url = sprintf("https://graph.facebook.com/%s?%s", $login, http_build_query(array(
'fields'=>'id,first_name,last_name,email,picture,gender',
'access_token'=>$this->access_token
)));
if ($data = @file_get_contents($url)) {
$this->cache->write($data, $cacheFilename);
}
}
} else {
//get the data
$url = sprintf("https://graph.facebook.com/%s?%s", $login, http_build_query(array(
'fields'=>'id,first_name,last_name,email,picture,gender',
'access_token'=>$this->access_token
)));
$data = @file_get_contents($url);
}
if ($data) {
$json = @json_decode($data, true);
if (isset($json['id'])) {
$user = new FacebookUser($this);
$user->setUserID($json['id']);
$user->setFirstName($json['first_name']);
$user->setLastName($json['last_name']);
if (isset($json['email'])) {
$user->setEmail($json['email']);
}
return $user;
}
}
return false;
}