PHP JSON

$file = __DIR__ . '/../data/twitter.json';
$tweets = array();

if(!file_exists($file) || (file_exists($file) && time()-filemtime($file) >= 3600)){

    try {
        $data = self::get_twitter_data();
    } catch (Exception $e) {
        $data = array();
    }

    if (!empty($data) && empty($data->errors)) {
        file_put_contents($file, json_encode($data));
        $current = $data;
    }else{
        $current = json_decode(file_get_contents($file));
    }
}else{
    $current = json_decode(file_get_contents($file));
}

foreach ($current as $key => $tweet) {

    $tweets[] = array(
        'data' => $text,
        'retweet_count' => $tweet->retweet_count,
        'favorite_count' => $tweet->favorite_count,
        'created_at' => $tweet->created_at
    );
}