Current File : /home/t/r/a/tradesc/www/relax/wp-content/plugins/seo-by-rank-math/includes/traits/class-cache.php
<?php
/**
* The Cache Trait.
*
* @since 1.0.99
* @package RankMath
* @subpackage RankMath\Traits
* @author Rank Math <support@rankmath.com>
*/
namespace RankMath\Traits;
defined( 'ABSPATH' ) || exit;
/**
* Cache class.
*/
trait Cache {
/**
* To generate hash of object.
*
* @param string|array|object $object Object for that hash need to generate.
*
* @return string Hash value of provided object.
*/
public function generate_hash( $object ) {
if ( empty( $object ) ) {
return '';
}
if ( is_object( $object ) ) {
$object = (array) $object;
}
if ( is_array( $object ) ) {
ksort( $object );
$object = wp_json_encode( $object );
}
$object = trim( $object );
$hash = hash( 'sha256', $object );
return $hash;
}
/**
* Sets a value in cache.
*
* The value is set whether or not this key already exists in Redis.
*
* @param string $key The key under which to store the value.
* @param mixed $data The value to store.
* @param string $group The group value appended to the $key.
* @param int $expire The expiration time, defaults to 0.
*
* @return bool Returns TRUE on success or FALSE on failure.
*/
public function set_cache( $key, $data, $group = '', $expire = 0 ) {
if ( ! $this->is_enabled() ) {
return false;
}
return wp_cache_set( $key, $data, $group, $expire );
}
/**
* Retrieve object from cache.
*
* Gets an object from cache based on $key and $group.
*
* @param string $key The key under which to store the value.
* @param string $group The group value appended to the $key.
*
* @return bool|mixed Cached object value.
*/
public function get_cache( $key, $group ) {
if ( ! $this->is_enabled() ) {
return false;
}
return wp_cache_get( $key, $group );
}
/**
* Removes all cache items in a group, if the object cache implementation supports it.
*
* @param string $group Name of group to remove from cache.
*
* @return bool True if group was flushed, false otherwise.
*/
public function cache_flush_group( $group ) {
if ( ! $this->is_enabled() ) {
return false;
}
global $wp_object_cache;
if ( ! isset( $wp_object_cache->cache[ $group ] ) ) {
return;
}
$wp_object_cache->delete_multiple( array_keys( $wp_object_cache->cache[ $group ] ), $group );
return true;
}
/**
* Check if cache is enabled.
*/
public function is_enabled() {
if ( wp_using_ext_object_cache() === false ) {
return false;
}
return apply_filters( 'rank_math/cache/enabled', true );
}
}
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