private static function referentTracker($keywords, $referents) { $match = []; foreach ($referents as $key => $referent) { $lastTweets = Twitter::getUserTimeline(['screen_name' => $referent->account, 'count' => 100, 'format' => 'json']); $keyfound = Self::keywordFinder($lastTweets, $keywords); array_push($match, $keyfound); } return $match; }