PHP cache::modified方法代码示例

function tweets($username, $params = array())
{
    $defaults = array('limit' => 10, 'cache' => true, 'refresh' => 60 * 20);
    // add the username to the defaults array
    $defaults['username'] = $username;
    $options = array_merge($defaults, $params);
    // check the cache dir
    $cacheDir = c::get('root.cache') . '/tweets';
    dir::make($cacheDir);
    // disable the cache if adding the cache dir failed
    if (!is_dir($cacheDir) || !is_writable($cacheDir)) {
        $options['cache'] = false;
    }
    // sanitize the limit
    if ($options['limit'] > 200) {
        $options['limit'] = 200;
    }
    // generate a unique cache ID
    $cacheID = 'tweets/tweets.' . md5($options['username']) . '.' . $options['limit'] . '.php';
    if ($options['cache']) {
        $cache = cache::modified($cacheID) < time() - $options['refresh'] ? false : cache::get($cacheID);
    } else {
        $cache = false;
    }
    if (!empty($cache)) {
        return $cache;
    }
    $url = 'http://api.twitter.com/1/statuses/user_timeline.json?screen_name=' . $options['username'] . '&count=' . $options['limit'];
    $json = @file_get_contents($url);
    $data = str::parse($json);
    if (!$data) {
        return false;
    }
    $result = array();
    foreach ($data as $tweet) {
        $user = $tweet['user'];
        $result[] = new tweet(array('url' => 'http://twitter.com/' . $options['username'] . '/status/' . $tweet['id_str'], 'text' => $tweet['text'], 'date' => strtotime($tweet['created_at']), 'source' => $tweet['source'], 'user' => new obj(array('name' => $user['name'], 'bio' => $user['description'], 'username' => $user['screen_name'], 'url' => 'http://twitter.com/' . $user['screen_name'], 'image' => 'http://twitter.com/api/users/profile_image/' . $user['screen_name'], 'following' => $user['friends_count'], 'followers' => $user['followers_count']))));
    }
    $result = new obj($result);
    if ($options['cache']) {
        cache::set($cacheID, $result);
    }
    return $result;
}

 function load()
 {
     // initiate the site and make pages and page
     // globally available
     $pages = $this->pages;
     $page = $this->pages->active();
     // check for ssl
     if (c::get('ssl')) {
         // if there's no https in the url
         if (!server::get('https')) {
             go(str_replace('http://', 'https://', $page->url()));
         }
     }
     // check for a misconfigured subfolder install
     if ($page->isErrorPage()) {
         // get the subfolder in which the site is running
         $subfolder = ltrim(dirname(server::get('script_name')), '/');
         // if it is running in a subfolder and it does not match the config
         // send an error with some explanations how to fix that
         if (!empty($subfolder) && c::get('subfolder') != $subfolder) {
             // this main url
             $url = 'http://' . server::get('http_host') . '/' . $subfolder;
             require_once c::get('root.kirby') . '/modals/subfolder.php';
             exit;
         }
     }
     // redirect file urls (file:image.jpg)
     if ($this->uri->param('file')) {
         // get the local file
         $file = $page->files()->find($this->uri->param('file'));
         if ($file) {
             go($file->url());
         }
     }
     // redirect /home to /
     if ($this->uri->path() == c::get('home')) {
         go(url());
     }
     // redirect tinyurls
     if ($this->uri->path(1) == c::get('tinyurl.folder') && c::get('tinyurl.enabled')) {
         $hash = $this->uri->path(2);
         if (!empty($hash)) {
             $resolved = $this->pages->findByHash($hash)->first();
             // redirect to the original page
             if ($resolved) {
                 go(url($resolved->uri));
             }
         }
     }
     // set the global template vars
     tpl::set('site', $this);
     tpl::set('pages', $pages);
     tpl::set('page', $page);
     $cacheID = $this->uri->toCacheID() . '.php';
     $cacheModified = time();
     $cacheData = null;
     if ($this->htmlCacheEnabled) {
         // check if the cache is disabled for some reason
         $this->htmlCacheEnabled = $page->isErrorPage() || in_array($page->uri(), c::get('cache.ignore', array())) ? false : true;
         // check for the last modified date of the cache file
         $cacheModified = cache::modified($cacheID);
         // check if the files have been modified
         // since the last html cache file has been written
         if ($this->htmlCacheEnabled && $cacheModified >= $this->modified) {
             $cacheData = cache::get($cacheID, true);
         }
     }
     if (empty($cacheData)) {
         // load the main template
         $html = tpl::load($page->template(), false, true);
         if ($this->htmlCacheEnabled) {
             cache::set($cacheID, (string) $html, true);
         }
     } else {
         $html = $cacheData;
     }
     die($html);
 }

 function load()
 {
     // initiate the site and make pages and page
     // globally available
     $pages = $this->pages;
     $page = $this->pages->active();
     // check for ssl
     if (c::get('ssl')) {
         // if there's no https in the url
         if (!server::get('https')) {
             go(str_replace('http://', 'https://', $page->url()));
         }
     }
     // check for index.php in rewritten urls and rewrite them
     if (c::get('rewrite') && preg_match('!index.php\\/!i', $this->uri->original)) {
         go($page->url());
     }
     // check for a misconfigured subfolder install
     if ($page->isErrorPage()) {
         // if you want to store subfolders in the homefolder for blog articles i.e. and you
         // want urls like http://yourdomain.com/article-title you can set
         // RedirectMatch 301 ^/home/(.*)$ /$1 in your htaccess file and those
         // next lines will take care of delivering the right pages.
         $uri = c::get('home') . '/' . $this->uri->path();
         if ($redirected = $this->pages()->find($uri)) {
             if ($redirected->uri() == $uri) {
                 $page = $redirected;
                 $this->pages->active = $page;
                 $this->uri = new uri($uri);
             }
         }
         // try to rewrite broken translated urls
         // this will only work for default uris
         if (c::get('lang.support')) {
             $path = $this->uri->path->toArray();
             $obj = $pages;
             $found = false;
             foreach ($path as $p) {
                 // first try to find the page by uid
                 $next = $obj->{'_' . $p};
                 if (!$next) {
                     // go through each translation for each child page
                     // and try to find the url_key or uid there
                     foreach ($obj as $child) {
                         foreach (c::get('lang.available') as $lang) {
                             $c = $child->content($lang);
                             // redirect to the url if a translated url has been found
                             if ($c && $c->url_key() == $p && !$child->isErrorPage()) {
                                 $next = $child;
                             }
                         }
                     }
                     if (!$next) {
                         break;
                     }
                 }
                 $found = $next;
                 $obj = $next->children();
             }
             if ($found && !$found->isErrorPage()) {
                 go($found->url());
             }
         }
     }
     // redirect file urls (file:image.jpg)
     if ($this->uri->param('file')) {
         // get the local file
         $file = $page->files()->find($this->uri->param('file'));
         if ($file) {
             go($file->url());
         }
     }
     // redirect /home to /
     if ($this->uri->path() == c::get('home')) {
         go(url());
     }
     // redirect tinyurls
     if ($this->uri->path(1) == c::get('tinyurl.folder') && c::get('tinyurl.enabled')) {
         $hash = $this->uri->path(2);
         if (!empty($hash)) {
             $resolved = $this->pages->findByHash($hash)->first();
             // redirect to the original page
             if ($resolved) {
                 go(url($resolved->uri));
             }
         }
     }
     // set the global template vars
     tpl::set('site', $this);
     tpl::set('pages', $pages);
     tpl::set('page', $page);
     $cacheID = $this->htmlCacheID();
     $cacheModified = time();
     $cacheData = null;
     if ($this->htmlCacheEnabled) {
         // check if the cache is disabled for some reason
         $this->htmlCacheEnabled = $page->isErrorPage() || in_array($page->uri(), c::get('cache.ignore', array())) ? false : true;
         // check for the last modified date of the cache file
         $cacheModified = cache::modified($cacheID);
         // check if the files have been modified
//.........这里部分代码省略.........

 /**
  * Constructor. Loads the data from the Instagram API.
  * @param string    The access token.
  * @param integer   The number of shots that will be loaded.
  * @param boolean   Chache enabled.
  * @param integer   How many seconds until the cache expires.
  * @param string    The user-id of the user or 'self' for your own account.
  */
 function __construct($_token = '', $_count = 10, $_cache = true, $_cache_expire = 3600, $_user = 'self')
 {
     // Init
     $this->images = array();
     $this->user = new stdClass();
     // Check if a token is provided
     if (trim($_token) != '') {
         // Construct the API url…
         // http://instagr.am/developer/endpoints/users/
         $url = "https://api.instagram.com/v1/users/{$_user}/media/recent/?access_token={$_token}&count={$_count}";
         // Create cache directory if it doesn't exist yet
         if ($_cache) {
             dir::make(c::get('root.cache') . '/instagram');
         }
         $images_cache_id = 'instagram/images.' . md5($_token) . '.' . $_count . '.php';
         $images_cache_data = false;
         // Try to fetch data from cache
         if ($_cache) {
             $images_cache_data = cache::modified($images_cache_id) < time() - $_cache_expire ? false : cache::get($images_cache_id);
         }
         // Load data from the API if the cache expired or the cache is empty
         if (empty($images_cache_data)) {
             $data = $this->fetch_data($url);
             $photos = json_decode($data);
             // Set new data for the cache
             if ($_cache) {
                 cache::set($images_cache_id, $photos);
             }
         } else {
             $photos = $images_cache_data;
         }
         // Process the images
         for ($i = 0; $i < $_count; $i++) {
             if (isset($photos->data[$i]) && count($photos->data) > 0) {
                 // Get the user's data from the first image
                 if ($i == 0) {
                     $this->user->username = $photos->data[$i]->user->username;
                     $this->user->full_name = $photos->data[$i]->user->full_name;
                     $this->user->picture = $photos->data[$i]->user->profile_picture;
                 }
                 // create a new object for each image
                 $obj = new stdClass();
                 $obj->link = $photos->data[$i]->link;
                 $obj->comments = @$photos->data[$i]->comments->count;
                 $obj->likes = @$photos->data[$i]->likes->count;
                 $obj->created = $photos->data[$i]->created_time;
                 $obj->thumb = @$photos->data[$i]->images->thumbnail->url;
                 $obj->url = @$photos->data[$i]->images->standard_resolution->url;
                 $obj->image_lowres = @$photos->data[$i]->images->low_resolution->url;
                 $obj->filter = $photos->data[$i]->filter;
                 $obj->location = @$photos->data[$i]->location->name;
                 $obj->latitude = @$photos->data[$i]->location->latitude;
                 $obj->longitude = @$photos->data[$i]->location->longitude;
                 $obj->tags = array();
                 // attach the new object to the array
                 $this->images[$i] = $obj;
                 // Process tags
                 for ($j = 0; $j < count($photos->data[$i]->tags); $j++) {
                     $this->images[$i]->tags[$j] = $photos->data[$i]->tags[$j];
                 }
             }
         }
     } else {
         throw new Exception('$_token MUST be set!');
     }
 }

 /**
  * Constructor. Loads the data from Dribbble when the object is constructed.
  * @param string    $_username The username of the player.
  * @param integer   $_number_of_shots The number of shots that will be loaded.
  * @param boolean   $_fetch_likes If the likes of the user should be fetched in a second call.
  * @param integer   If <code>$_fetch_likes</code> is <code>true</code>, then how many likes should be fetched.
  * @param boolean   $cache Enable/disable caching. Cache is enabled by default
  * @param integer   $refresh Seconds before the cache will be refreshed. Default is in hour (3600 seconds)
  */
 function __construct($_username = "s_albrecht", $_number_of_shots = 3, $_fetch_likes = false, $_number_of_likes = 3, $cache = true, $refresh = 3600)
 {
     // Init
     $this->username = $_username;
     $this->shots = array();
     $this->likes = array();
     $this->player = null;
     // Build URLs
     $base_url = "http://api.dribbble.com/players/" . $this->username;
     $shots_url = $base_url . "/shots";
     $likes_url = $base_url . "/likes";
     // create the cache directory if not there yet
     if ($cache) {
         dir::make(c::get('root.cache') . '/dribbble');
     }
     // Process the data
     if ($_number_of_shots > 0) {
         // define a cache id
         $shots_cache_id = 'dribbble/shots.' . md5($this->username) . '.' . $_number_of_shots . '.php';
         $shots_cache_data = false;
         // try to fetch the data from cache
         if ($cache) {
             $shots_cache_data = cache::modified($shots_cache_id) < time() - $refresh ? false : cache::get($shots_cache_id);
         }
         // if there's no data in the cache, load shots from the Dribbble API
         if (empty($shots_cache_data)) {
             $all_shots = $this->fetch_data($shots_url);
             $all_shots = json_decode($all_shots);
             $all_shots = $all_shots->shots;
             if ($cache) {
                 cache::set($shots_cache_id, $all_shots);
             }
         } else {
             $all_shots = $shots_cache_data;
         }
         // Only proceed if there is at least one shot.
         // If there's no shot, then player data can't be extracted from this API call
         // and must be extracted via /players/:id/ (maybe I'll implement that later)
         if (count($all_shots) > 0) {
             // Load shots data
             for ($i = 0; $i < $_number_of_shots; $i++) {
                 if (!is_null($all_shots[$i])) {
                     $this->shots[$i]->id = $all_shots[$i]->id;
                     $this->shots[$i]->title = $all_shots[$i]->title;
                     $this->shots[$i]->url = $all_shots[$i]->url;
                     $this->shots[$i]->short_url = $all_shots[$i]->short_url;
                     $this->shots[$i]->image = $all_shots[$i]->image_url;
                     $this->shots[$i]->likes = $all_shots[$i]->likes_count;
                     $this->shots[$i]->views = $all_shots[$i]->views_count;
                     $this->shots[$i]->rebounds = $all_shots[$i]->rebounds_count;
                     $this->shots[$i]->comments = $all_shots[$i]->comments_count;
                     $this->shots[$i]->created = $all_shots[$i]->created_at;
                 }
             }
             // Process player data
             $this->player->id = $all_shots[0]->player->id;
             $this->player->name = $all_shots[0]->player->name;
             $this->player->username = $all_shots[0]->player->username;
             $this->player->url = $all_shots[0]->player->url;
             $this->player->avatar_url = $all_shots[0]->player->avatar_url;
             $this->player->twitter = $all_shots[0]->player->twitter_screen_name;
             $this->player->location = $all_shots[0]->player->location;
             $this->player->followers = $all_shots[0]->player->followers_count;
             $this->player->following = $all_shots[0]->player->following_count;
             $this->player->likes = $all_shots[0]->player->likes_count;
         }
     }
     // Fetch all likes of the user (needs another API call).
     // If you only want to fetch the likes, not the shots, then set <code>$_number_of_shots</code> to <code>0</code>.
     if ($_fetch_likes && $_number_of_likes > 0) {
         // define a cache id
         $likes_cache_id = 'dribbble/likes.' . md5($this->username) . '.' . $_number_of_likes . '.php';
         $likes_cache_data = false;
         // try to fetch the data from cache
         if ($cache) {
             $likes_cache_data = cache::modified($likes_cache_id) < time() - $refresh ? false : cache::get($likes_cache_id);
         }
         // if there's no data in the cache, load likes from the Dribbble API
         if (empty($likes_cache_data)) {
             $all_likes = $this->fetch_data($likes_url);
             $all_likes = json_decode($all_likes);
             $all_likes = $all_likes->shots;
             if ($cache) {
                 cache::set($likes_cache_id, $all_likes);
             }
         } else {
             $all_likes = $likes_cache_data;
         }
         // Process likes
         for ($i = 0; $i < $_number_of_likes; $i++) {
             if (!is_null($all_likes[$i])) {
//.........这里部分代码省略.........

function flickrbadge($params = array())
{
    $defaults = array('key' => false, 'username' => false, 'limit' => 10, 'format' => 'square', 'cache' => true, 'refresh' => 60 * 60 * 2);
    $options = array_merge($defaults, $params);
    // check the cache dir
    $cacheDir = c::get('root.cache') . '/flickrbadge';
    dir::make($cacheDir);
    // disable the cache if adding the cache dir failed
    if (!is_dir($cacheDir) || !is_writable($cacheDir)) {
        $options['cache'] = false;
    }
    if (!$options['key']) {
        return false;
    }
    if (!$options['username']) {
        return false;
    }
    $cacheID = 'flickrbadge/data.' . md5(serialize($options)) . '.php';
    if ($options['cache']) {
        $cache = cache::modified($cacheID) < time() - $options['refresh'] ? false : cache::get($cacheID);
    } else {
        $cache = false;
    }
    if (!empty($cache)) {
        return $cache;
    }
    $flickr = new phpFlickr($options['key']);
    $userCacheID = 'flickrbadge/user.' . md5($options['username']) . '.php';
    $userCache = $options['cache'] ? cache::get($userCacheID) : false;
    $user = false;
    $url = false;
    if (!empty($userCache)) {
        $user = a::get($userCache, 'user');
        $url = a::get($userCache, 'url');
    }
    if (!$user || !$url) {
        $user = $flickr->people_findByUsername($options['username']);
        $url = $flickr->urls_getUserPhotos($user['id']);
        if ($options['cache']) {
            cache::set($userCacheID, array('user' => $user, 'url' => $url));
        }
    }
    $photos = $flickr->people_getPublicPhotos($user['id'], NULL, NULL, $options['limit']);
    $result = array();
    foreach ($photos['photos']['photo'] as $photo) {
        $photoCacheID = 'flickrbadge/photo.' . $photo['id'] . '.php';
        $info = $options['cache'] ? cache::get($photoCacheID) : false;
        if (empty($info)) {
            $info = $flickr->photos_getInfo($photo['id']);
            if ($options['cache']) {
                cache::set($photoCacheID, $info);
            }
        }
        $info = a::get($info, 'photo', array());
        $dates = a::get($info, 'dates', array());
        $tags = array();
        foreach ((array) $info['tags']['tag'] as $t) {
            if (!empty($t['raw']) && !$t['machine_tag']) {
                $tags[] = $t['raw'];
            }
        }
        $result[] = new obj(array('url' => $url . $photo['id'], 'title' => a::get($info, 'title', $photo['title']), 'description' => @$info['description'], 'src' => $flickr->buildPhotoURL($photo, $options['format']), 'taken' => isset($dates['taken']) ? strtotime($dates['taken']) : false, 'posted' => isset($dates['posted']) ? $dates['posted'] : false, 'lastupdate' => isset($dates['lastupdate']) ? $dates['lastupdate'] : false, 'views' => a::get($info, 'views', 0), 'comments' => a::get($info, 'comments', 0), 'tags' => $tags));
    }
    $result = new obj($result);
    if ($options['cache']) {
        cache::set($cacheID, $result);
    }
    return $result;
}

 static function expired($file, $time = false)
 {
     return cache::modified($file) < time() - $time ? true : false;
 }

function tweets($username, $params = array())
{
    $defaults = array('limit' => 10, 'cache' => true, 'hiderep' => false, 'refresh' => 60 * 20);
    // add the username to the defaults array
    $defaults['username'] = $username;
    $options = array_merge($defaults, $params);
    // check the cache dir
    $cacheDir = c::get('root.cache') . '/tweets';
    dir::make($cacheDir);
    // disable the cache if adding the cache dir failed
    if (!is_dir($cacheDir) || !is_writable($cacheDir)) {
        $options['cache'] = false;
    }
    // sanitize the limit
    if ($options['limit'] > 200) {
        $options['limit'] = 200;
    }
    // generate a unique cache ID
    $cacheID = 'tweets/tweets.' . md5($options['username']) . '.' . $options['limit'] . '.php';
    if ($options['cache']) {
        $cache = cache::modified($cacheID) < time() - $options['refresh'] ? false : cache::get($cacheID);
    } else {
        $cache = false;
    }
    if (!empty($cache)) {
        return $cache;
    }
    // Encode the key and secret from the Twitter config.
    $twitterKey = urlencode(c::get('twitter.key'));
    $twitterSecret = urlencode(c::get('twitter.secret'));
    // combine and base64 encode the key and secret with a colon seperator
    $twitterCode = base64_encode($twitterKey . ':' . $twitterSecret);
    // obtain a bearer token from the api, by building a request
    //url to use
    $url = 'https://api.twitter.com/oauth2/token';
    //create header
    $header = array('http' => array('method' => "POST", 'header' => "Content-type: application/x-www-form-urlencoded;charset=UTF-8\r\n" . "Authorization: Basic " . $twitterCode . "\r\n", 'content' => "grant_type=client_credentials"));
    //send the request
    $context = stream_context_create($header);
    $bearer = file_get_contents($url, false, $context);
    // decode the json response
    $bearer = json_decode($bearer);
    // send the rquest for tweets
    $url = 'https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=' . $options['username'] . '&count=' . $options['limit'] . '&include_rts=true' . '&exclude_replies=' . $options['hiderep'];
    $header = array('http' => array('method' => "GET", 'header' => "Authorization: Bearer " . $bearer->access_token . "\r\n"));
    $context = stream_context_create($header);
    $json = file_get_contents($url, false, $context);
    $data = json_decode($json);
    if (!$data) {
        return false;
    }
    $result = array();
    foreach ($data as $tweet) {
        $user = $tweet->user;
        $result[] = new tweet(array('url' => 'http://twitter.com/' . $options['username'] . '/status/' . $tweet->id_str, 'text' => $tweet->text, 'date' => strtotime($tweet->created_at), 'source' => $tweet->source, 'user' => new obj(array('name' => $user->name, 'bio' => $user->description, 'username' => $user->screen_name, 'url' => 'http://twitter.com/' . $user->screen_name, 'image' => 'http://twitter.com/api/users/profile_image/' . $user->screen_name, 'following' => $user->friends_count, 'followers' => $user->followers_count))));
    }
    $result = new obj($result);
    if ($options['cache']) {
        cache::set($cacheID, $result);
    }
    return $result;
}