File: /storage/v12674/lcacorpold/public_html/wp-content/plugins/cf-geoplugin/inc/classes/Cache.php
<?php if ( ! defined( 'WPINC' ) ) { die( "Don't mess with us." ); }
/**
* Cache Control
*
* @link http://infinitumform.com/
* @since 8.0.0
* @package cf-geoplugin
* @author Ivijan-Stefan Stipic
* @version 1.0.0
*
* @todo https://www.php.net/manual/en/function.spl-object-hash.php
*/
if(!class_exists('CFGP_Cache', false)) : class CFGP_Cache {
/*
* Save all cached objcts to this variable
*/
private static $cache = NULL;
/*
* Get cached object
*
* Returns the value of the cached object, or false if the cache key doesn’t exist
*/
public static function get($key) {
return self::$cache[ self::key($key) ] ?? NULL;
}
/*
* Save object to cache
*
* This function adds data to the cache if the cache key doesn’t already exist.
* If it does exist, the data is not added and the function returns old value
*/
public static function add($key, $value) {
$key = self::key($key);
if (array_key_exists($key, self::$cache)) {
self::garbage_cleaner();
self::$cache[ $key ] = $value;
}
return self::$cache[ $key ];
}
/*
* Save object to cache
*
* Adds data to the cache. If the cache key already exists, then it will be overwritten;
* if not then it will be created.
*/
public static function set($key, $value, $expire=0) {
$key = self::key($key);
self::garbage_cleaner();
self::$cache[ $key ] = $value;
return self::$cache[ $key ];
}
/*
* Replace cached object
*
* Replaces the given cache if it exists, returns false otherwise.
*/
public static function replace($key, $value, $expire=0) {
$key = self::key($key);
if (array_key_exists($key, self::$cache)) {
self::$cache[ $key ] = $value;
}
return self::$cache[ $key ];
}
/*
* Delete cached object
*
* Clears data from the cache for the given key.
*/
public static function delete($key) {
$key = self::key($key);
if (array_key_exists($key, self::$cache)) {
unset(self::$cache[ $key ]);
}
}
/*
* Clears all cached data
*/
public static function flush() {
self::$cache=NULL;
return true;
}
/*
* Debug cache
*/
public static function debug() {
ob_start();
var_dump(self::$cache);
// $debug = ob_get_clean();
$debug = '';
if (ob_get_level()) {
$debug = ob_get_contents();
ob_end_clean();
}
echo wp_kses_post('<pre class="cfgp-cache-debug">' . htmlspecialchars(preg_replace(
array('/(\=\>\n\s{2,4})/'),
array(' => '),
$debug
)) . '</pre>');
}
/*
* Cache size
*/
public static function get_size() {
$get_size = strlen(json_encode(self::$cache));
return ceil($get_size*8);
}
/*
* Cache key
*/
private static function key($key) {
static $suffix;
if ( empty($suffix) ) {
$suffix = str_replace('.', '', (string)microtime(true));
}
$key = trim($key);
return $key . '_' . $suffix;
}
/*
* PRIVATE: Clean up the accumulated garbage
*/
private static function garbage_cleaner() {
if (!function_exists('mt_getrandmax') || !is_array(self::$cache)) {
return;
}
if (function_exists('mt_rand')) {
$getrandmax = mt_getrandmax();
$rand = mt_rand();
}
else {
$getrandmax = getrandmax();
$rand = rand();
}
$exclude = apply_filters('cfgp/cache/exclude_from_cleaning', array(
// Classes
'CFGP_DB_Cache',
'CFGP_API',
'CFGP_IP',
'CFGP_License',
// Main objects
'API',
'ID',
'IP',
'REST_KEY',
'license',
'IP-blocked',
'IP-server',
// Helpers
'parse_url',
'current_url',
'get_page',
'get_post_type',
'is_rest_enabled',
'has_seo_redirection',
'transfer_dns_records'
));
$capability = apply_filters('cfgp/cache/capability', 100);
$gc_probability = apply_filters('cfgp/cache/gc_probability', 1);
$gc_divisor = apply_filters('cfgp/cache/gc_divisor', 100);
if (defined('CFGP_CACHE_CAPABILITY')) {
$capability = CFGP_CACHE_CAPABILITY;
}
if (defined('CFGP_CACHE_GARBAGE_COLLECTION_PROBABILITY')) {
$gc_probability = CFGP_CACHE_GARBAGE_COLLECTION_PROBABILITY;
}
if (defined('CFGP_CACHE_GARBAGE_COLLECTION_DIVISOR')) {
$gc_divisor = CFGP_CACHE_GARBAGE_COLLECTION_DIVISOR;
}
if (($rand / $getrandmax) && ($gc_probability / $gc_divisor)) {
while (count(self::$cache) > $capability) {
reset(self::$cache);
$key = key(self::$cache);
if( !in_array($key, $exclude) ) {
self::delete($key);
}
}
}
}
} endif;