PHP wp_cache_replace函数代码示例

 public static function meta_reset()
 {
     global $pagenow;
     self::$reset_meta = apply_filters('piklist_reset_meta_admin_pages', self::$reset_meta);
     if (in_array($pagenow, self::$reset_meta)) {
         foreach (self::$reset_meta as $page => $data) {
             if (isset($_REQUEST[$data['id']])) {
                 wp_cache_replace($_REQUEST[$data['id']], false, $data['group']);
                 break;
             }
         }
     }
 }

 function filter_object_item($terms, $object_ids, $taxonomies)
 {
     global $current_user;
     switch ($taxonomies) {
         case '\'category\'':
             // Gets the current Post Categories Cache
             $_categories = wp_cache_get($object_ids, 'category_relationships');
             if (is_array($_categories)) {
                 foreach ($_categories as $id => $cat) {
                     if (!capa_protect::user_can_access($id, $current_user, 'category')) {
                         unset($_categories[$id]);
                     }
                 }
                 wp_cache_replace($object_ids, $_categories, 'category_relationships');
             }
             break;
     }
     return $terms;
 }

 function update_var($field = null)
 {
     $options = array();
     $flag = true;
     if ($field == null) {
         $options['cf_registered_sidebars'] = $this->cf_registered_sidebars;
         $options['sidebars_fields'] = $this->sidebars_fields;
         $options['cf_registered_fields'] = $this->cf_registered_fields;
     } else {
         if (empty($this->options)) {
             $this->options = wp_cache_get('cf_options-' . $this->post_type, FLAG_CACHE);
         }
         $options = $this->options;
         if (!isset($options[$field]) || isset($options[$field]) && $options[$field] !== $this->{$field}) {
             $options[$field] = $this->{$field};
         } else {
             $flag = false;
         }
     }
     if ($flag == true) {
         update_option('cf_options-' . $this->post_type, $options);
         wp_cache_replace('cf_options-' . $this->post_type, $options, FLAG_CACHE, 3600);
     }
 }

//.........这里部分代码省略.........
          * Fix the Cholesterol typo oops in early versions
          */
         if ($postDOM->recipeVersion < '3') {
             $postDOM->fixTimes("preptime");
             $postDOM->fixTimes("cooktime");
             $postDOM->fixTimes("duration");
             $postDOM->setParentValueByClassName("cholestrol", $this->settings->lblCholesterol, "Cholestrol");
         }
         $data = new stdClass();
         /**
          * Get the ratings from the comment meta table if we use the EasyRecipe comment method
          * Other rating methods are handled in EasyRecipePlusDocument->applyStyle()
          * hasRatings is left unset for Self Rating
          */
         if ($this->ratingMethod == 'EasyRecipe') {
             $q = "SELECT COUNT(*) AS count, SUM(meta_value) AS sum FROM {$wpdb->comments} JOIN {$wpdb->commentmeta} ON {$wpdb->commentmeta}.comment_id = {$wpdb->comments}.comment_ID ";
             $q .= "WHERE comment_approved = 1 AND meta_key = 'ERRating' AND comment_post_ID = {$post->ID} AND meta_value > 0";
             $ratings = $wpdb->get_row($q);
             if ((int) $ratings->count > 0) {
                 $data->ratingCount = $ratings->count;
                 $data->ratingValue = number_format($ratings->sum / $ratings->count, 1);
                 $data->ratingPC = $data->ratingValue * 100 / 5;
                 $data->hasRating = true;
             } else {
                 $data->hasRating = false;
             }
         } else {
             if ($this->ratingMethod == 'Disabled') {
                 $data->hasRating = false;
             }
         }
         switch ($this->settings->saveButton) {
             case 'Ziplist':
                 $data->saveButtonJS = self::ZIPLISTJS;
                 $data->saveButton = sprintf(self::ZIPLISTBUTTON, $this->settings->ziplistPartnerKey, urlencode(get_permalink($post->ID)), $this->settings->lblSave);
                 $data->hasSave = true;
                 break;
             case 'BigOven':
                 $data->saveButtonJS = '';
                 $data->saveButton = sprintf(self::BIGOVENBUTTON, self::$EasyRecipePlusUrl);
                 $data->hasSave = true;
                 break;
         }
         $this->settings->getLabels($data);
         $data->hasLinkback = $this->settings->allowLink;
         $data->displayPrint = $this->settings->displayPrint;
         $data->style = $this->styleName;
         $data->title = $post->post_title;
         $data->blogname = get_option("blogname");
         // TODO - do all this stuff at initialise time?
         $data->siteURL = $this->homeURL;
         /**
          * If the site isn't using permalinks then just pass the print stuff as a qurerystring param
          */
         if ($wp_rewrite->using_permalinks()) {
             $data->sitePrintURL = $data->siteURL;
         } else {
             $data->sitePrintURL = $data->siteURL . "?";
         }
         $data->postID = $post->ID;
         $data->recipeurl = get_permalink($post->ID);
         $data->convertFractions = $this->settings->convertFractions;
         if ($this->styleName[0] == '_') {
             $styleName = substr($this->styleName, 1);
             $templateFile = $this->settings->customTemplates . "/styles/{$styleName}/style.html";
         } else {
             $templateFile = self::$EasyRecipePlusDir . "/styles/{$this->styleName}/style.html";
         }
         $template = new EasyRecipePlusTemplate($templateFile);
         $data->isLoggedIn = is_user_logged_in();
         /**
          * Apply styles to the recipe data and return the content with recipes replace by a shortcode and also each recipe's HTML
          * Also keep a copy so we don't have to reformat in the case where the theme asks for the same post again
          *
          * This didn't work!  Some themes don't call the_content() (esp for excerpts) so we can't rely on hooking into that to supply the formatted html
          * We need to do it right here - it seems that the_posts is the only reliable place to replace the base recipe HTML with the formatted recipe HTML
          */
         /**
          * Replace the original content with the one that has the easyrecipe(s) nicely formatted and marked up
          * Also keep a copy so we don't have to reformat in the case where the theme asks for the same post again
          */
         $this->postContent[$post->ID] = $post->post_content = $postDOM->applyStyle($template, $data);
         /**
          * If we haven't already done so, hook into the_content filter to stop wpauto() messing with recipe HTML
          */
         if (empty($shortcode_tags['easyrecipe'])) {
             add_filter('the_content', array($this, 'theContent'), 0);
             add_shortcode('easyrecipe', array($this, 'replaceRecipeShortcode'));
         }
         /**
          * Some themes do a get_post() again instead of using the posts as modified by plugins
          * So make sure our modified post is in cache so the get_post() picks up the modified version not the original
          * Need to do both add and replace since add doesn't replace and replace doesn't add and we can't be sure if the cache key exists at this point
          */
         wp_cache_add($post->ID, $post, 'posts');
         wp_cache_replace($post->ID, $post, 'posts');
         $newPosts[] = $post;
     }
     return $newPosts;
 }

 public function test_wp_cache_replace()
 {
     $key = 'my-key';
     $val1 = 'first-val';
     $val2 = 'second-val';
     $fake_key = 'my-fake-key';
     // Save the first value to cache and verify
     wp_cache_set($key, $val1);
     $this->assertEquals($val1, wp_cache_get($key));
     // Replace the value and verify
     wp_cache_replace($key, $val2);
     $this->assertEquals($val2, wp_cache_get($key));
     // Non-existant key should fail
     $this->assertFalse(wp_cache_replace($fake_key, $val1));
     // Make sure $fake_key is not stored
     $this->assertFalse(wp_cache_get($fake_key));
 }

 /**
  * Replace a value in the object cache, if the value already exists.
  *
  * Errors if the value can't be replaced.
  *
  * ## OPTIONS
  *
  * <key>
  * : Cache key.
  *
  * <value>
  * : Value to replace.
  *
  * [<group>]
  * : Method for grouping data within the cache which allows the same key to be used across groups.
  *
  * [<expiration>]
  * : Define how long to keep the value, in seconds. `0` means as long as possible.
  * ---
  * default: 0
  * ---
  *
  * ## EXAMPLES
  *
  *     # Replace cache.
  *     $ wp cache replace my_key new_value my_group
  *     Success: Replaced object 'my_key' in group 'my_group'.
  */
 public function replace($args, $assoc_args)
 {
     list($key, $value) = $args;
     $group = \WP_CLI\Utils\get_flag_value($args, 2, '');
     $expiration = \WP_CLI\Utils\get_flag_value($args, 3, 0);
     $result = wp_cache_replace($key, $value, $group, $expiration);
     if (false === $result) {
         WP_CLI::error("Could not replace object '{$key}' in group '{$group}'. Does it already exist?");
     }
     WP_CLI::success("Replaced object '{$key}' in group '{$group}'.");
 }

/**
 * Update or add option value to hidden post type.
 *
 * @param  string $name  Option name.
 * @param  mixed  $value Option value.
 *
 * @return mixed Returns false on failure.
 */
function xu_update_option($name, $value)
{
    $name = xu_get_option_name($name);
    if (empty($name)) {
        return false;
    }
    $old = xu_get_option($name);
    if ($old === $value) {
        return false;
    }
    if ($old === false) {
        return xu_add_option($name, $value);
    }
    if (!($post_id = xu_get_option_post_id($name))) {
        return $default;
    }
    if (!update_post_meta($post_id, 'option_value', $value)) {
        return false;
    }
    wp_cache_replace($name, $value, 'xu_large_option');
    return true;
}

function &get_category(&$category, $output = OBJECT) {
	global $wpdb;

	if ( empty($category) )
		return null;

	if ( is_object($category) ) {
		wp_cache_add($category->cat_ID, $category, 'category');
		$_category = $category;
	} else {
		if ( ! $_category = wp_cache_get($category, 'category') ) {
			$_category = $wpdb->get_row("SELECT * FROM $wpdb->categories WHERE cat_ID = '$category' LIMIT 1");
			wp_cache_add($category, $_category, 'category');
		}
	}

	$_category = apply_filters('get_category', $_category);

	if ( !isset($_category->fullpath) ) {
		$_category = set_category_path($_category);
		wp_cache_replace($_category->cat_ID, $_category, 'category');	
	}

	if ( $output == OBJECT ) {
		return $_category;
	} elseif ( $output == ARRAY_A ) {
		return get_object_vars($_category);
	} elseif ( $output == ARRAY_N ) {
		return array_values(get_object_vars($_category));
	} else {
		return $_category;
	}
}

 /**
  * Replace an existing value in the object cache.
  *
  * @uses	wp_cache_replace
  *
  * @param 	array 			$args				Function arguments.
  * @param 	array 			$assoc_args			Function arguments with parameter key.
  * @return	void
  */
 public function replace($args, $assoc_args)
 {
     if (count($assoc_args) + count($args) < 2) {
         WP_CLI::line('usage: wp cache replace <key> <value> [group] [expiration]');
         exit;
     }
     list($key, $value) = $args;
     $group = isset($args[2]) ? $args[2] : '';
     $expiration = isset($args[3]) ? $args[3] : 0;
     $result = wp_cache_replace($key, $value, $group, $expiration);
     if (false === $result) {
         WP_CLI::error("Could not replace object '{$key}' in group '{$group}'. Does it already exist?");
         exit;
     }
     WP_CLI::success("Replaced object '{$key}' in group '{$group}'.");
 }

 /**
  * get_body_class()
  *
  * @param int $post_id
  * @param $query
  * @return int $is_parent
  */
 function get_body_class($post_id, $query)
 {
     $var = false;
     $post_id = (int) $post_id;
     $post = wp_cache_get($post_id, 'posts');
     if ($post !== false) {
         if (isset($post->is_parent)) {
             $var = $post->is_parent;
             $this->cache_hits++;
         } else {
             $var = (int) self::$wpdb->get_var($query);
             $post->is_parent = $var;
             wp_cache_replace($post->ID, $post, 'posts');
         }
     }
     return $var;
 }

$r = wp_cache_get('key', 'test-group');
$rf = wp_cache_get('key', 'test-group', true);
echo "wp_cache_add > wp_cache_get force: " . bool_to_str($r == $rf);
echo "wp_cache_add > wp_cache_get: " . bool_to_str($r == 'value');
$r = wp_cache_get('integer', 'test-group');
$rf = wp_cache_get('integer', 'test-group', true);
echo "wp_cache_add exist > wp_cache_get force: " . bool_to_str($r == $rf);
echo "wp_cache_add exist > wp_cache_get: " . bool_to_str($r == -1);
// test wp_cache_delete
wp_cache_delete('key', 'test-group');
wp_cache_delete('integer', 'test-group');
$false = wp_cache_get('key', 'test-group');
$falsef = wp_cache_get('integer', 'test-group', true);
echo "wp_cache_delete > wp_cache_get force:" . bool_to_str($falsef === $false);
echo "wp_cache_delete > wp_cache_get: " . bool_to_str($false === false);
// test wp_cache_replace
$false = wp_cache_replace('key', 'value', 'test-group');
wp_cache_set('key', 'value', 'test-group');
$true = wp_cache_replace('key', 'value', 'test-group');
echo "wp_cache_replace: " . bool_to_str($true === true);
echo "wp_cache_replace no exist: " . bool_to_str($false == false);
$r = wp_cache_get('key', 'test-group');
$rf = wp_cache_get('key', 'test-group', true);
echo "wp_cache_replace > wp_cache_get force: " . bool_to_str($r == $rf);
echo "wp_cache_replace > wp_cache_get: " . bool_to_str($r == 'value');
// test wp_cache_set
wp_cache_set('a', 'b', 'test-group');
$r = wp_cache_get('a', 'test-group');
$rf = wp_cache_get('a', 'test-group', true);
echo "wp_cache_set > wp_cache_get force: " . bool_to_str($r == $rf);
echo "wp_cache_set > wp_cache_get: " . bool_to_str($r == 'b');

 /**
  * Get HTML Unique ID for each action box
  */
 function getHtmlId()
 {
     //this to have unique ID attribute of the main containing div in case there is more
     //than 1 of the same action box. Cache key is composed of $_htmlUniqueId prefix and
     //ID of the action box.
     $actionBoxId = $this->getId();
     $htmlUniqueId = wp_cache_get($this->_html_UniqueId . $actionBoxId);
     if (false === $htmlUniqueId) {
         //this is the first
         $htmlUniqueId = 1;
         wp_cache_set($this->_html_UniqueId . $actionBoxId, $htmlUniqueId);
     } else {
         //another box is already displayed
         $htmlUniqueId++;
         wp_cache_replace($this->_html_UniqueId . $actionBoxId, $htmlUniqueId);
     }
     return $actionBoxId . $htmlUniqueId;
 }

//.........这里部分代码省略.........
         /**
          * Make sure we haven't already formatted this post. This can happen in preview mode where WP replaces the post_content
          * of the parent with the autosave content which we've already processed.
          * If this is the case, save the formatted code and mark this post as having been processed
          * TODO - are there implications for the object cache for themes that re-read posts?
          */
         if ($postDOM->isFormatted) {
             $this->postContent[$post->ID] = $post->post_content;
             $newPosts[] = $post;
             continue;
         }
         /**
          * Fix possibly broken times in older posts
          * Fix the Cholesterol typo oops in early versions
          */
         if ($postDOM->recipeVersion < '3') {
             $postDOM->fixTimes("preptime");
             $postDOM->fixTimes("cooktime");
             $postDOM->fixTimes("duration");
             $postDOM->setParentValueByClassName("cholestrol", $this->settings->lblCholesterol, "Cholestrol");
         }
         $data = new stdClass();
         /**
          * Get the ratings from the comment meta table if we use the EasyRecipe comment method
          * Other rating methods are handled in EasyRecipeDocument->applyStyle()
          * hasRatings is left unset for Self Rating
          */
         if ($this->ratingMethod == 'EasyRecipe') {
             $q = "SELECT COUNT(*) AS count, SUM(meta_value) AS sum FROM {$wpdb->comments} JOIN {$wpdb->commentmeta} ON {$wpdb->commentmeta}.comment_id = {$wpdb->comments}.comment_ID ";
             $q .= "WHERE comment_approved = 1 AND meta_key = 'ERRating' AND comment_post_ID = {$post->ID} AND meta_value > 0";
             $ratings = $wpdb->get_row($q);
             if ((int) $ratings->count > 0) {
                 $data->ratingCount = $ratings->count;
                 $data->ratingValue = number_format($ratings->sum / $ratings->count, 1);
                 $data->ratingPC = $data->ratingValue * 100 / 5;
                 $data->hasRating = true;
             } else {
                 $data->hasRating = false;
             }
         } else {
             if ($this->ratingMethod == 'Disabled') {
                 $data->hasRating = false;
             }
         }
         $this->settings->getLabels($data);
         $data->hasLinkback = $this->settings->allowLink;
         $data->displayPrint = $this->settings->displayPrint;
         $data->style = $this->styleName;
         $data->title = $post->post_title;
         $data->blogname = get_option("blogname");
         // TODO - do all this stuff at initialise time?
         $data->siteURL = $this->homeURL;
         /**
          * If the site isn't using permalinks then just pass the print stuff as a qurerystring param
          */
         if ($wp_rewrite->using_permalinks()) {
             $data->sitePrintURL = $data->siteURL;
         } else {
             $data->sitePrintURL = $data->siteURL . "?";
         }
         $data->postID = $post->ID;
         $data->recipeurl = get_permalink($post->ID);
         $data->convertFractions = $this->settings->convertFractions;
         if ($this->styleName[0] == '_') {
             $styleName = substr($this->styleName, 1);
             $templateFile = $this->settings->customTemplates . "/styles/{$styleName}/style.html";
         } else {
             $templateFile = self::$EasyRecipeDir . "/styles/{$this->styleName}/style.html";
         }
         $template = new EasyRecipeTemplate($templateFile);
         /**
          * Apply styles to the recipe data and return the content with recipes replace by a shortcode and also each recipe's HTML
          * Also keep a copy so we don't have to reformat in the case where the theme asks for the same post again
          *
          * This didn't work!  Some themes don't call the_content() (esp for excerpts) so we can't rely on hooking into that to supply the formatted html
          * We need to do it right here - it seems that the_posts is the only reliable place to replace the base recipe HTML with the formatted recipe HTML
          */
         /**
          * Replace the original content with the one that has the easyrecipe(s) nicely formatted and marked up
          * Also keep a copy so we don't have to reformat in the case where the theme asks for the same post again
          */
         $this->postContent[$post->ID] = $post->post_content = $postDOM->applyStyle($template, $data);
         /**
          * If we haven't already done so, hook into the_content filter to stop wpauto() messing with recipe HTML
          */
         if (empty($shortcode_tags['easyrecipe'])) {
             add_filter('the_content', array($this, 'theContent'), 0);
             add_shortcode('easyrecipe', array($this, 'replaceRecipeShortcode'));
         }
         /**
          * Some themes do a get_post() again instead of using the posts as modified by plugins
          * So make sure our modified post is in cache so the get_post() picks up the modified version not the original
          * Need to do both add and replace since add doesn't replace and replace doesn't add and we can't be sure if the cache key exists at this point
          */
         wp_cache_add($post->ID, $post, 'posts');
         wp_cache_replace($post->ID, $post, 'posts');
         $newPosts[] = $post;
     }
     return $newPosts;
 }

 /**
  * Replace an existing value in the object cache.
  *
  * @synopsis <key> <value> [<group>] [<expiration>]
  */
 public function replace($args, $assoc_args)
 {
     list($key, $value) = $args;
     $group = isset($args[2]) ? $args[2] : '';
     $expiration = isset($args[3]) ? $args[3] : 0;
     $result = wp_cache_replace($key, $value, $group, $expiration);
     if (false === $result) {
         WP_CLI::error("Could not replace object '{$key}' in group '{$group}'. Does it already exist?");
     }
     WP_CLI::success("Replaced object '{$key}' in group '{$group}'.");
 }

 private function cache_get($key, $cache_time)
 {
     $t = wp_cache_get($key, 'dymoloader1.0');
     if ($t !== false && isset($t['data'])) {
         // check soft expire
         if ($t['softexpire'] < time()) {
             // update cache with new soft expire time
             $t['softexpire'] = time() + ($cache_time - 5 * MINUTE_IN_SECONDS);
             wp_cache_replace($key, $t, 'dymoloader1.0', $cache_time);
         }
         return json_decode(gzuncompress($t['data']), true);
     } else {
         return NULL;
     }
 }