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PATH: var / www / clients / client1 / web1 / web / wp-content / plugins / wp-optimize / includes

<?php

if (!defined('WPO_VERSION')) die('No direct access allowed');

/**
 * Class WP_Optimize_Transients_Cache
 */
class WP_Optimize_Transients_Cache {

private $_cache = array();

private $_expiration = array();

private $_keep_free_mem = false;

/**
	 * WP_Optimize_Transients_Cache constructor.
	 */
	public function __construct() {
	}

/**
	 * Return instance of WP_Optimize_Transients_Cache.
	 *
	 * @return WP_Optimize_Transients_Cache
	 */
	public static function get_instance() {
		static $instance;
		if (null === $instance) {
			$instance = new self();
		}
		return $instance;

}

/**
	 * Save $value to memory or to database depends on free memory.
	 *
	 * @param string $key
	 * @param mixed  $value
	 * @param int    $expiration
	 */
	public function set($key, &$value, $expiration = 0) {
		$keep_free_mem = $this->_keep_free_mem ?: 16 * 1048576;

$used_memory = memory_get_usage();
		$free_memory = WP_Optimize()->get_free_memory();
		$released_memory = 0;

$cache_keys = array_keys($this->_cache);

// release memory while we need.
		while ($keep_free_mem > $free_memory + $released_memory && !empty($cache_keys)) {
			$this->flush_value(array_shift($cache_keys));
			$released_memory = $used_memory - memory_get_usage();
		}

// if we have enough of free memory then save to memory.
		if (WP_Optimize()->get_free_memory() > $keep_free_mem) {
			$this->_cache[$key] = $value;
			$this->_expiration[$key] = $expiration;
		} else {
			if (isset($this->_cache[$key])) {
				unset($this->_cache[$key]);
			}

if (isset($this->_expiration[$key])) {
				unset($this->_expiration[$key]);
			}

$this->set_transient($key, $value, $expiration);
		}
	}

/**
	 * Return value from cache by $key.
	 *
	 * @param string $key
	 * @return mixed
	 */
	public function get($key) {
		if (array_key_exists($key, $this->_cache)) return $this->_cache[$key];

return $this->get_transient($key);
	}

/**
	 * Delete value from cache.
	 *
	 * @param string $key
	 */
	public function delete($key) {
		if (array_key_exists($key, $this->_cache)) {
			unset($this->_cache[$key], $this->_expiration[$key]);
		}

$this->delete_transient($key);
	}

/**
	 * Set transient.
	 *
	 * @param string $key
	 * @param mixed  $value
	 * @param int    $expiration
	 */
	public function set_transient($key, $value, $expiration = 0) {
		if (WP_Optimize()->is_multisite_mode()) {
			set_site_transient($key, $value, $expiration);
		} else {
			set_transient($key, $value, $expiration);
		}
	}

/**
	 * Get transient.
	 *
	 * @param string $key
	 * @return mixed
	 */
	public function get_transient($key) {
		if (WP_Optimize()->is_multisite_mode()) {
			$value = get_site_transient($key);
		} else {
			$value = get_transient($key);
		}

return $value;
	}

/**
	 * Delete transient.
	 *
	 * @param string $key
	 */
	public function delete_transient($key) {
		if (WP_Optimize()->is_multisite_mode()) {
			delete_site_transient($key);
		} else {
			delete_transient($key);
		}
	}

/**
	 * Save value to database and remove from $_cache array.
	 *
	 * @param string $key
	 */
	public function flush_value($key) {
		$this->set_transient($key, $this->_cache[$key], $this->_expiration[$key]);
		unset($this->_cache[$key], $this->_expiration[$key]);
	}

/**
	 * Save all _cache values to database.
	 */
	public function flush() {
		foreach (array_keys($this->_cache) as $key) {
			$this->flush_value($key);
		}
	}
}

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[-] class-updraft-smush-manager-commands.php [edit]
[-] class-updraft-abstract-logger.php [edit]
[-] class-wp-optimize-delay-js.php [edit]
[-] class-wp-optimize-table-management.php [edit]
[+] blockui
[-] class-wp-optimization.php [edit]
[-] class-wpo-onboarding.php [edit]
[-] class-updraft-logger.php [edit]
[-] class-updraft-ring-logger.php [edit]
[-] class-updraft-smush-manager.php [edit]
[-] class-wp-optimize-admin.php [edit]
[-] class-wp-optimizer.php [edit]
[-] class-wp-optimize-htaccess.php [edit]
[-] class-wp-optimize-transients-cache.php [edit]
[-] class-wpo-deactivation.php [edit]
[-] class-wp-optimize-utils.php [edit]
[-] class-updraft-email-logger.php [edit]
[-] class-wpo-image-utils.php [edit]
[-] class-wp-optimize-browser-cache.php [edit]
[-] class-wp-optimize-database-information.php [edit]
[-] class-wp-optimize-install-or-update-notice.php [edit]
[-] class-wpo-page-optimizer.php [edit]
[-] class-wp-optimize-performance.php [edit]
[-] class-wp-optimize-commands.php [edit]
[-] class-updraft-log-levels.php [edit]
[-] class-wp-optimize-notices.php [edit]
[-] class-wp-optimize-404-detector.php [edit]
[-] class-wpo-uninstall.php [edit]
[+] tables
[-] class-wpo-activation.php [edit]
[-] class-updraftcentral-wp-optimize-commands.php [edit]
[-] class-wp-optimize-server-information.php [edit]
[-] class-wp-optimize-options.php [edit]
[-] class-wp-optimize-preloader.php [edit]
[-] class-updraft-php-logger.php [edit]
[-] class-updraft-smush-task.php [edit]
[+] ..
[-] class-wp-optimize-http-error-codes-trait.php [edit]
[+] fragments
[-] class-re-smush-it-task.php [edit]
[-] class-updraft-file-logger.php [edit]
[-] class-wp-optimize-404-detector-cron.php [edit]
[-] class-wpo-ajax.php [edit]
[+] list-tables
[-] class-wp-optimize-system-status-report.php [edit]
[-] class-wp-optimize-gzip-compression.php [edit]
[-] updraftcentral.php [edit]
[-] class-wp-optimize-heartbeat.php [edit]
[-] backward-compatibility-functions.php [edit]

8:18 AM 12/29/2025 Vim Patior

Vim Patior

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