PHP wp_cache_clean_cache函数代码示例

 public function clear_cache()
 {
     if (function_exists('wp_cache_clean_cache')) {
         global $file_prefix;
         wp_cache_clean_cache($file_prefix);
     }
 }

 /**
  * Clear cache
  */
 public function clear_pagecache()
 {
     global $file_prefix;
     if (function_exists('wp_cache_clean_cache')) {
         wp_cache_clean_cache($file_prefix, true);
     }
 }

/**
 * Clear the caches!
 */
function ccfm_clear_cache_for_me($source)
{
    global $wp_fastest_cache;
    do_action('ccfm_clear_cache_for_me_before', $source);
    // if W3 Total Cache is being used, clear the cache
    if (function_exists('w3tc_pgcache_flush')) {
        w3tc_pgcache_flush();
    } else {
        if (function_exists('wp_cache_clean_cache')) {
            global $file_prefix, $supercachedir;
            if (empty($supercachedir) && function_exists('get_supercache_dir')) {
                $supercachedir = get_supercache_dir();
            }
            wp_cache_clean_cache($file_prefix);
        } else {
            if (class_exists('WpeCommon')) {
                //be extra careful, just in case 3rd party changes things on us
                if (method_exists('WpeCommon', 'purge_memcached')) {
                    WpeCommon::purge_memcached();
                }
                if (method_exists('WpeCommon', 'purge_memcached')) {
                    WpeCommon::clear_maxcdn_cache();
                }
                if (method_exists('WpeCommon', 'purge_memcached')) {
                    WpeCommon::purge_varnish_cache();
                }
            } else {
                if (method_exists('WpFastestCache', 'deleteCache') && !empty($wp_fastest_cache)) {
                    $wp_fastest_cache->deleteCache();
                }
            }
        }
    }
    do_action('ccfm_clear_cache_for_me', $source);
}

 function ajax_refresh_static_posts()
 {
     check_ajax_referer('refreshstaticposts');
     if (isset($_POST['number'])) {
         $number = absint($_POST['number']);
         $action = sanitize_text_field($_POST['action']);
         $name = sanitize_text_field($_POST['name']);
         //Get the SRP widgets
         $settings = get_option($name);
         $widget = $settings[$number];
         //Get the new post IDs
         $widget = $this->build_posts(intval($widget['postlimit']), $widget);
         $post_ids = $widget['posts'];
         //Save the settings
         $settings[$number] = $widget;
         //Only save if user is admin
         if (is_user_logged_in() && current_user_can('administrator')) {
             update_option($name, $settings);
             //Let's clean up the cache
             //Update WP Super Cache if available
             if (function_exists("wp_cache_clean_cache")) {
                 @wp_cache_clean_cache('wp-cache-');
             }
         }
         //Build and send the response
         die($this->print_posts($post_ids, false));
     }
     exit;
 }

 function reset_caches()
 {
     global $cache_path, $file_prefix;
     if (function_exists('prune_super_cache')) {
         prune_super_cache($cache_path, true);
     }
     if (function_exists('wp_cache_clean_cache')) {
         wp_cache_clean_cache($file_prefix);
     }
 }

 public static function mt_clear_cache()
 {
     global $file_prefix;
     if (function_exists('w3tc_pgcache_flush')) {
         w3tc_pgcache_flush();
     }
     if (function_exists('wp_cache_clean_cache')) {
         wp_cache_clean_cache($file_prefix, true);
     }
 }

 /**
  * Clear something from the cache.
  *
  * @synopsis [--post_id=<post-id>] [--permalink=<permalink>]
  */
 function flush($args = array(), $assoc_args = array())
 {
     if (isset($assoc_args['post_id'])) {
         if (is_numeric($assoc_args['post_id'])) {
             wp_cache_post_change($assoc_args['post_id']);
         } else {
             WP_CLI::error('This is not a valid post id.');
         }
         wp_cache_post_change($assoc_args['post_id']);
     } elseif (isset($assoc_args['permalink'])) {
         $id = url_to_postid($assoc_args['permalink']);
         if (is_numeric($id)) {
             wp_cache_post_change($id);
         } else {
             WP_CLI::error('There is no post with this permalink.');
         }
     } else {
         global $file_prefix;
         wp_cache_clean_cache($file_prefix, true);
         WP_CLI::success('Cache cleared.');
     }
 }

function wp_cache_files()
{
    global $cache_path, $file_prefix, $cache_max_time, $valid_nonce, $supercachedir, $cache_enabled, $super_cache_enabled, $blog_cache_dir, $cache_compression;
    if ('/' != substr($cache_path, -1)) {
        $cache_path .= '/';
    }
    if ($valid_nonce) {
        if (isset($_REQUEST['wp_delete_cache'])) {
            wp_cache_clean_cache($file_prefix);
        }
        if (isset($_REQUEST['wp_delete_expired'])) {
            wp_cache_clean_expired($file_prefix);
        }
    }
    echo "<a name='listfiles'></a>";
    echo '<fieldset class="options" id="show-this-fieldset"><h3>' . __('Cache Contents', 'wp-super-cache') . '</h3>';
    $list_files = false;
    // it doesn't list supercached files, and removing single pages is buggy
    $count = 0;
    $expired = 0;
    $now = time();
    if ($handle = @opendir($blog_cache_dir . 'meta/')) {
        if ($list_files) {
            echo "<table cellspacing=\"0\" cellpadding=\"5\">";
        }
        $wp_cache_fsize = 0;
        if ($valid_nonce && isset($_GET['action']) && $_GET['action'] == 'deletewpcache') {
            $deleteuri = preg_replace('/[ <>\'\\"\\r\\n\\t\\(\\)]/', '', str_replace('/index.php', '/', str_replace('..', '', preg_replace("/(\\?.*)?\$/", '', base64_decode($_GET['uri'])))));
            $deleteuri = str_replace('\\', '', $deleteuri);
        } else {
            $deleteuri = '';
        }
        if ($valid_nonce && isset($_GET['action']) && $_GET['action'] == 'deletesupercache') {
            $supercacheuri = preg_replace('/[ <>\'\\"\\r\\n\\t\\(\\)]/', '', str_replace('/index.php', '/', str_replace('..', '', preg_replace("/(\\?.*)?\$/", '', base64_decode($_GET['uri'])))));
            $supercacheuri = trailingslashit(str_replace('\\', '', $supercacheuri));
            printf(__("Deleting supercache file: <strong>%s</strong><br />", 'wp-super-cache'), $supercacheuri);
            @unlink($cache_path . 'supercache/' . $supercacheuri . 'index.html');
            @unlink($cache_path . 'supercache/' . $supercacheuri . 'index.html.gz');
            prune_super_cache($cache_path . 'supercache/' . $supercacheuri . 'page', true);
            @rmdir($cache_path . 'supercache/' . $supercacheuri);
        }
        while (false !== ($file = readdir($handle))) {
            if (preg_match("/^{$file_prefix}.*\\.meta/", $file)) {
                $content_file = preg_replace("/meta\$/", "html", $file);
                $mtime = filemtime($blog_cache_dir . 'meta/' . $file);
                if (!($fsize = @filesize($blog_cache_dir . $content_file))) {
                    continue;
                }
                // .meta does not exists
                $age = $now - $mtime;
                if ($valid_nonce && $_GET['listfiles']) {
                    $meta = unserialize(file_get_contents($blog_cache_dir . 'meta/' . $file));
                    if ($deleteuri != '' && $meta['uri'] == $deleteuri) {
                        printf(__("Deleting wp-cache file: <strong>%s</strong><br />", 'wp-super-cache'), $deleteuri);
                        @unlink($blog_cache_dir . 'meta/' . $file);
                        @unlink($blog_cache_dir . $content_file);
                        continue;
                    }
                    $meta['age'] = $age;
                    if ($age > $cache_max_time) {
                        $expired_list[$age][] = $meta;
                    } else {
                        $cached_list[$age][] = $meta;
                    }
                }
                if ($age > $cache_max_time) {
                    $expired++;
                } else {
                    $count++;
                }
                $wp_cache_fsize += $fsize;
                $fsize = intval($fsize / 1024);
            }
        }
        closedir($handle);
        if ($list_files) {
            echo "</table>";
        }
    }
    if ($wp_cache_fsize != 0) {
        $wp_cache_fsize = $wp_cache_fsize / 1024;
    } else {
        $wp_cache_fsize = 0;
    }
    if ($wp_cache_fsize > 1024) {
        $wp_cache_fsize = number_format($wp_cache_fsize / 1024, 2) . "MB";
    } elseif ($wp_cache_fsize != 0) {
        $wp_cache_fsize = number_format($wp_cache_fsize, 2) . "KB";
    } else {
        $wp_cache_fsize = '0KB';
    }
    if ($cache_enabled == true && $super_cache_enabled == true) {
        $now = time();
        $sizes = array('expired' => 0, 'expired_list' => array(), 'cached' => 0, 'cached_list' => array(), 'ts' => 0);
        if (is_dir($supercachedir)) {
            if ($dh = opendir($supercachedir)) {
                while (($entry = readdir($dh)) !== false) {
                    if ($entry != '.' && $entry != '..') {
                        $sizes = wpsc_dirsize(trailingslashit($supercachedir) . $entry, $sizes);
                    }
//.........这里部分代码省略.........

 function manage_options()
 {
     if (isset($_GET['download'])) {
         if ($_GET['download'] == 'site') {
             check_admin_referer('thesis-download-site');
             #wp
             header("Cache-Control: public, must-revalidate");
             header("Pragma: hack");
             header("Content-Type: text/plain");
             header('Content-Disposition: attachment; filename="thesis-site-options-' . date("Ymd") . '.dat"');
             $site_options = new thesis_site_options();
             $site_options->get_options();
             echo serialize($site_options);
             exit;
         } elseif ($_GET['download'] == 'design') {
             check_admin_referer('thesis-download-design');
             #wp
             header("Cache-Control: public, must-revalidate");
             header("Pragma: hack");
             header("Content-Type: text/plain");
             header('Content-Disposition: attachment; filename="thesis-design-options-' . date("Ymd") . '.dat"');
             $design_options = new thesis_design_options();
             $design_options->get_options();
             echo serialize($design_options);
             exit;
         } elseif ($_GET['download'] == 'all') {
             check_admin_referer('thesis-download-all');
             #wp
             header("Cache-Control: public, must-revalidate");
             header("Pragma: hack");
             header("Content-Type: text/plain");
             header('Content-Disposition: attachment; filename="thesis-all-options-' . date("Ymd") . '.dat"');
             $site_options = new thesis_site_options();
             $site_options->get_options();
             $design_options = new thesis_design_options();
             $design_options->get_options();
             echo serialize(array('site_options' => $site_options, 'design_options' => $design_options));
             exit;
         }
     } elseif (isset($_GET['restore'])) {
         if ($_GET['restore'] == 'site') {
             check_admin_referer('thesis-restore-site');
             #wp
             $default_site_options = new thesis_site_options();
             $default_site_options->default_options();
             update_option('thesis_options', $default_site_options);
             #wp
             wp_redirect(admin_url('admin.php?page=options-manager&restored=true&type=Site'));
             #wp
         } elseif ($_GET['restore'] == 'design') {
             check_admin_referer('thesis-restore-design');
             #wp
             $default_design_options = new thesis_design_options();
             $default_design_options->default_options();
             update_option('thesis_design_options', $default_design_options);
             #wp
             thesis_generate_css();
             wp_redirect(admin_url('admin.php?page=options-manager&restored=true&type=Design'));
             #wp
         } elseif ($_GET['restore'] == 'all') {
             check_admin_referer('thesis-restore-all');
             #wp
             $default_site_options = new thesis_site_options();
             $default_site_options->default_options();
             $default_design_options = new thesis_design_options();
             $default_design_options->default_options();
             update_option('thesis_options', $default_site_options);
             #wp
             update_option('thesis_design_options', $default_design_options);
             #wp
             thesis_generate_css();
             wp_redirect(admin_url('admin.php?page=options-manager&restored=true&type=All'));
             #wp
         }
     } elseif (isset($_POST['upload'])) {
         global $thesis_site;
         if ($_POST['upload'] == 'site') {
             check_admin_referer('thesis-upload-site', '_wpnonce-thesis-upload-site');
             #wp
             if (strpos($_FILES['file']['name'], 'thesis-site-options') === false) {
                 wp_redirect(admin_url('admin.php?page=options-manager&type=Site&error=wrongfile'));
             } elseif ($_FILES['file']['error'] > 0) {
                 wp_redirect(admin_url('admin.php?page=options-manager&type=Site&error=file'));
             } else {
                 $raw_options = file_get_contents($_FILES['file']['tmp_name']);
                 $site_options = new thesis_site_options();
                 $site_options = unserialize($raw_options);
                 if (function_exists('wp_cache_clean_cache')) {
                     #wp
                     global $file_prefix;
                     wp_cache_clean_cache($file_prefix);
                 }
                 if (is_object($site_options) && version_compare($thesis_site->version, $site_options->version, '==')) {
                     update_option('thesis_options', $site_options);
                     #wp
                     wp_redirect(admin_url('admin.php?page=options-manager&imported=true&type=Site'));
                     #wp
                 } else {
                     wp_redirect(admin_url("admin.php?page=options-manager&type=Site&error=version&tried={$site_options->version}"));
                 }
//.........这里部分代码省略.........

/**
*
* @TODO do
*
*/
function pagelines_import_export()
{
    if (isset($_POST['form_submitted']) && $_POST['form_submitted'] == 'export_settings_form') {
        $pagelines_settings = (array) get_option(PAGELINES_SETTINGS);
        $pagelines_template_map = (array) get_option(PAGELINES_TEMPLATE_MAP);
        $pagelines_templates = (array) get_option(PAGELINES_TEMPLATES);
        $pagelines_special = (array) get_option(PAGELINES_SPECIAL);
        $options['pagelines_templates'] = $pagelines_templates;
        $options['pagelines_template_map'] = $pagelines_template_map;
        $options['pagelines_settings'] = $pagelines_settings;
        $options['pagelines_special'] = $pagelines_special;
        if (isset($options) && is_array($options)) {
            header('Cache-Control: public, must-revalidate');
            header('Pragma: hack');
            header('Content-Type: text/plain');
            header('Content-Disposition: attachment; filename="' . PL_THEMENAME . '-Settings-' . date('Ymd') . '.dat"');
            echo json_encode($options);
            exit;
        }
    }
    if (isset($_POST['form_submitted']) && $_POST['form_submitted'] == 'import_settings_form') {
        if (strpos($_FILES['file']['name'], 'Settings') === false && strpos($_FILES['file']['name'], 'settings') === false) {
            wp_redirect(admin_url(PL_IMPORT_EXPORT_URL . '&pageaction=import&error=wrongfile'));
        } elseif ($_FILES['file']['error'] > 0) {
            $error_type = $_FILES['file']['error'];
            wp_redirect(admin_url(PL_IMPORT_EXPORT_URL . '&pageaction=import&error=file&' . $error_type));
        } else {
            $raw_options = pl_file_get_contents($_FILES['file']['tmp_name']);
            $all_options = json_decode(json_encode(json_decode($raw_options)), true);
            if (!isset($_POST['pagelines_layout']) && is_array($all_options) && isset($all_options['pagelines_settings']) && is_array($all_options['pagelines_settings'])) {
                unset($all_options['pagelines_settings']['layout']);
            }
            if (isset($_POST['pagelines_settings']) && is_array($all_options) && isset($all_options['pagelines_settings']) && is_array($all_options['pagelines_settings'])) {
                update_option(PAGELINES_SETTINGS, array_merge(get_option(PAGELINES_SETTINGS), $all_options['pagelines_settings']));
                $done = 1;
            }
            if (isset($_POST['pagelines_special']) && is_array($all_options) && isset($all_options['pagelines_special']) && is_array($all_options['pagelines_special'])) {
                $special = (array) get_option(PAGELINES_SPECIAL);
                update_option(PAGELINES_SPECIAL, array_merge($special, $all_options['pagelines_special']));
                $done = 1;
            }
            if (isset($_POST['pagelines_templates']) && is_array($all_options) && isset($all_options['pagelines_template_map']) && is_array($all_options['pagelines_template_map'])) {
                $template_map = (array) get_option(PAGELINES_TEMPLATE_MAP);
                $template_settings = (array) get_option(PAGELINES_TEMPLATES);
                $template_settings_new = isset($all_options['pagelines_templates']) && is_array($all_options['pagelines_templates']) ? $all_options['pagelines_templates'] : array();
                $template_map_new = isset($all_options['pagelines_template_map']) && is_array($all_options['pagelines_template_map']) ? $all_options['pagelines_template_map'] : array();
                update_option(PAGELINES_TEMPLATE_MAP, array_merge($template_map, $template_map_new));
                update_option(PAGELINES_TEMPLATES, array_merge($template_settings, $template_settings_new));
                $done = 1;
            }
            if (function_exists('wp_cache_clean_cache')) {
                global $file_prefix;
                wp_cache_clean_cache($file_prefix);
            }
            if (isset($done)) {
                wp_redirect(admin_url(PL_IMPORT_EXPORT_URL . '&pageaction=import&imported=true'));
            } else {
                wp_redirect(admin_url(PL_IMPORT_EXPORT_URL . '&pageaction=import&error=wrongfile'));
            }
        }
    }
}

 private function clear_cache_plugins()
 {
     /* Not implemented yet - still testing */
     /***
      * Automatically clears page caches after plugin install or upgrade
      * Called from upgrade_check()
      * Added 1.9.6.2
      ***/
     global $wpss_cache_check, $wp_fastest_cache;
     if (empty($wpss_cache_check)) {
         $wpss_cache_check = rs_wpss_check_cache_status();
     }
     if ($wpss_cache_check['cache_check_status'] === 'ACTIVE') {
         if (rs_wpss_is_plugin_active('w3-total-cache/w3-total-cache.php') && function_exists('w3tc_pgcache_flush')) {
             /* W3 Total Cache */
             w3tc_pgcache_flush();
         }
         if (rs_wpss_is_plugin_active('wp-super-cache/wp-cache.php') && function_exists('wp_cache_clean_cache')) {
             /* WP Super Cache */
             global $file_prefix;
             wp_cache_clean_cache($file_prefix);
         }
         if (rs_wpss_is_plugin_active('wp-fastest-cache/wpFastestCache.php') && !empty($wp_fastest_cache) && method_exists('WpFastestCache', 'deleteCache')) {
             /* WP Fastest Cache */
             $wp_fastest_cache->deleteCache();
         }
         if (class_exists('WPE_API', FALSE) && class_exists('WpeCommon')) {
             /* WP Engine Hosting */
             if (method_exists('WpeCommon', 'purge_memcached')) {
                 WpeCommon::purge_memcached();
             }
             if (method_exists('WpeCommon', 'clear_maxcdn_cache')) {
                 WpeCommon::clear_maxcdn_cache();
             }
             if (method_exists('WpeCommon', 'purge_varnish_cache')) {
                 WpeCommon::purge_varnish_cache();
             }
         }
     }
 }

 /**
  * Clear cache from:
  *  - W3TC,
  *  - WordPress Total Cache
  *  - WPEngine
  *  - Varnish
  */
 public function clear_cache()
 {
     // if W3 Total Cache is being used, clear the cache
     if (function_exists('w3tc_pgcache_flush')) {
         w3tc_pgcache_flush();
     } else {
         if (function_exists('wp_cache_clean_cache')) {
             global $file_prefix;
             wp_cache_clean_cache($file_prefix);
         } else {
             if (class_exists('WpeCommon')) {
                 WpeCommon::purge_memcached();
                 WpeCommon::clear_maxcdn_cache();
                 WpeCommon::purge_varnish_cache();
             }
         }
     }
     // Clear Varnish caches
     if (Avada()->settings->get('dynamic_css_compiler') && Avada()->settings->get('cache_server_ip')) {
         $this->clear_varnish_cache(self::file('url'));
     }
 }

function pagelines_import_export()
{
    if (isset($_GET['download']) && $_GET['download'] == 'settings') {
        header("Cache-Control: public, must-revalidate");
        header("Pragma: hack");
        header("Content-Type: text/plain");
        header('Content-Disposition: attachment; filename="PageLines-' . THEMENAME . '-Settings-' . date("Ymd") . '.dat"');
        $pagelines_settings = get_option(PAGELINES_SETTINGS);
        $pagelines_template = get_option('pagelines_template_map');
        echo serialize(array('pagelines_settings' => $pagelines_settings, 'pagelines_template' => $pagelines_template));
        exit;
    }
    if (isset($_POST['settings_upload']) && $_POST['settings_upload'] == 'settings') {
        if (strpos($_FILES['file']['name'], 'Settings') === false) {
            wp_redirect(admin_url('admin.php?page=pagelines&pageaction=import&error=wrongfile'));
        } elseif ($_FILES['file']['error'] > 0) {
            wp_redirect(admin_url('admin.php?page=pagelines&pageaction=import&error=file'));
        } else {
            $raw_options = file_get_contents($_FILES['file']['tmp_name']);
            $all_options = unserialize($raw_options);
            if (isset($all_options['pagelines_settings']) && isset($all_options['pagelines_template'])) {
                $pagelines_settings = $all_options['pagelines_settings'];
                $pagelines_template = $all_options['pagelines_template'];
                if (is_array($pagelines_settings)) {
                    update_option(PAGELINES_SETTINGS, $pagelines_settings);
                }
                if (is_array($pagelines_template)) {
                    update_option('pagelines_template_map', $pagelines_template);
                }
            }
            if (function_exists('wp_cache_clean_cache')) {
                global $file_prefix;
                wp_cache_clean_cache($file_prefix);
            }
            pagelines_build_dynamic_css();
            wp_redirect(admin_url('admin.php?page=pagelines&pageaction=import&imported=true'));
        }
    }
}

function wp_cache_files()
{
    global $cache_path, $file_prefix, $cache_max_time, $valid_nonce;
    if ('/' != substr($cache_path, -1)) {
        $cache_path .= '/';
    }
    if ($valid_nonce) {
        if (isset($_REQUEST['wp_delete_cache'])) {
            wp_cache_clean_cache($file_prefix);
        }
        if (isset($_REQUEST['wp_delete_cache_file'])) {
            wp_cache_clean_cache($_REQUEST['wp_delete_cache_file']);
        }
        if (isset($_REQUEST['wp_delete_expired'])) {
            wp_cache_clean_expired($file_prefix);
        }
    }
    if (isset($_REQUEST['wp_list_cache'])) {
        $list_files = true;
        $list_mess = "Update list";
    } else {
        $list_mess = "List files";
    }
    echo '<a name="list"></a><fieldset class="options"><legend>Cache contents</legend>';
    echo '<form name="wp_cache_content_list" action="' . $_SERVER["REQUEST_URI"] . '#list" method="post">';
    echo '<input type="hidden" name="wp_list_cache" />';
    echo '<div class="submit"><input type="submit" value="' . $list_mess . '" /></div>';
    echo "</form>\n";
    $count = 0;
    $expired = 0;
    $now = time();
    if ($handle = opendir($cache_path)) {
        if ($list_files) {
            echo "<table cellspacing=\"0\" cellpadding=\"5\">";
        }
        while (false !== ($file = readdir($handle))) {
            if (preg_match("/^{$file_prefix}.*\\.meta/", $file)) {
                $this_expired = false;
                $content_file = preg_replace("/meta\$/", "html", $file);
                $mtime = filemtime($cache_path . $file);
                if (!($fsize = @filesize($cache_path . $content_file))) {
                    continue;
                }
                // .meta does not exists
                $fsize = intval($fsize / 1024);
                $age = $now - $mtime;
                if ($age > $cache_max_time) {
                    $expired++;
                    $this_expired = true;
                }
                $count++;
                if ($list_files) {
                    $meta = new CacheMeta();
                    $meta = unserialize(file_get_contents($cache_path . $file));
                    echo $flip ? '<tr style="background: #EAEAEA;">' : '<tr>';
                    $flip = !$flip;
                    echo '<td><a href="http://' . $meta->uri . '" target="_blank" >';
                    echo $meta->uri . "</a></td>";
                    if ($this_expired) {
                        echo "<td><span style='color:red'>{$age} secs</span></td>";
                    } else {
                        echo "<td>{$age} secs</td>";
                    }
                    echo "<td>{$fsize} KB</td>";
                    echo '<td><form name="wp_delete_cache_file" action="' . $_SERVER["REQUEST_URI"] . '#list" method="post">';
                    echo '<input type="hidden" name="wp_list_cache" />';
                    echo '<input type="hidden" name="wp_delete_cache_file" value="' . preg_replace("/^(.*)\\.meta\$/", "\$1", $file) . '" />';
                    echo '<div class="submit"><input id="deletepost" type="submit" value="Remove" /></div>';
                    wp_nonce_field('wp-cache');
                    echo "</form></td></tr>\n";
                }
            }
        }
        closedir($handle);
        if ($list_files) {
            echo "</table>";
        }
    }
    echo "<P><b>{$count} cached pages</b></p>";
    echo "<P><b>{$expired} expired pages</b></p>";
    echo '<form name="wp_cache_content_expired" action="' . $_SERVER["REQUEST_URI"] . '#list" method="post">';
    echo '<input type="hidden" name="wp_delete_expired" />';
    echo '<input type="hidden" name="wp_list_cache" />';
    echo '<div class="submit"><input type="submit" value="Delete expired" /></div>';
    wp_nonce_field('wp-cache');
    echo "</form>\n";
    echo '<form name="wp_cache_content_delete" action="' . $_SERVER["REQUEST_URI"] . '#list" method="post">';
    echo '<input type="hidden" name="wp_delete_cache" />';
    echo '<div class="submit"><input id="deletepost" type="submit" value="Delete cache" /></div>';
    wp_nonce_field('wp-cache');
    echo "</form>\n";
    echo '</fieldset>';
}

                foreach ($items as $widget) {
                    $w = explode('X|X', $widget);
                    $options[$col][$i]['id'] = $w[0];
                    $options[$col][$i]['number'] = $w[1];
                    $options[$col][$i]['id_base'] = $w[2];
                    $i++;
                }
            }
        }
        $theOptions[$canvas_id]['widgets'] = $options;
        update_option('eletro_widgets', $theOptions);
        break;
    case 'apply':
        $canvas_id = $_POST['canvas_id'];
        $adminOptions = get_option('eletro_widgets');
        $publicOptions = get_option('eletro_widgets_public');
        $publicOptions[$canvas_id] = $adminOptions[$canvas_id];
        update_option('eletro_widgets_public', $publicOptions);
        // if using wp-super-cache, clean the cache
        if (function_exists('wp_cache_clean_cache')) {
            wp_cache_clean_cache('wp-cache');
        }
        break;
    case 'restore':
        $canvas_id = $_POST['canvas_id'];
        $adminOptions = get_option('eletro_widgets');
        $publicOptions = get_option('eletro_widgets_public');
        $adminOptions[$canvas_id] = $publicOptions[$canvas_id];
        update_option('eletro_widgets', $adminOptions);
        break;
}