cacheenginememcache.php

См. документацию.

<?php
 
namespace Bitrix\Main\Data;
 
use Bitrix\Main\Config\Configuration;
use Bitrix\Main\Data\LocalStorage\Storage;
 
class CacheEngineMemcache extends Cache\KeyValueEngine implements Storage\CacheEngineInterface
{
    public function getConnectionName(): string
    {
        return 'cache.memcache';
    }
 
    public static function getConnectionClass()
    {
        return MemcacheConnection::class;
    }
 
    protected function configure($options = []): array
    {
        $config = parent::configure($options);
 
        $cacheConfig = Configuration::getValue('cache');
 
        $config['persistent'] = true;
        if (isset($cacheConfig['persistent']) && $cacheConfig['persistent'] == 0)
        {
            $config['persistent'] = false;
        }
 
        if (isset($cacheConfig['connectionTimeout']))
        {
            $config['connectionTimeout'] = (int)$cacheConfig['connectionTimeout'];
        }
 
        return $config;
    }
 
    protected static function getExpire($ttl)
    {
        $ttl = (int) $ttl;
        if ($ttl > 2592000)
        {
            $ttl = microtime(1) + $ttl;
        }
 
        return $ttl;
    }
 
    public function set($key, $ttl, $value)
    {
        $ttl = self::getExpire($ttl);
        return self::$engine->set($key, $value, 0, $ttl);
    }
 
    public function get($key)
    {
        return self::$engine->get($key);
    }
 
    public function del($key)
    {
        if (is_array($key))
        {
            foreach ($key as $item)
            {
                self::$engine->delete($item);
            }
        }
        else
        {
            self::$engine->delete($key);
        }
    }
 
    public function setNotExists($key, $ttl, $value)
    {
        $ttl = self::getExpire($ttl);
        return self::$engine->add($key, $value, null, $ttl);
    }
 
    public function checkInSet($key, $value) : bool
    {
        $list = self::$engine->get($key);
 
        if (!is_array($list))
        {
            $list = [];
        }
 
        if (array_key_exists($value, $list))
        {
            return true;
        }
 
        return false;
    }
 
    public function addToSet($key, $value)
    {
        $list = self::$engine->get($key);
 
        if (!is_array($list))
        {
            $list = [];
        }
 
        if (!array_key_exists($value, $list))
        {
            $list[$value] = 1;
            $this->set($key, 0, $list);
        }
    }
 
    public function getSet($key): array
    {
        $list = self::$engine->get($key);
        if (!is_array($list) || empty($list))
        {
            return [];
        }
 
        return array_keys($list);
    }
 
    public function deleteBySet($key, $prefix = '')
    {
        $list = self::$engine->get($key);
        self::$engine->delete($key);
 
        if (is_array($list) && !empty($list))
        {
            array_walk($list, function ($value, $key) {
                self::$engine->delete($key);
            });
            unset($list);
        }
    }
 
    public function delFromSet($key, $member)
    {
        $list = self::$engine->get($key);
 
        if (is_array($list) && !empty($list))
        {
            $rewrite = false;
            if (!is_array($member))
            {
                $member = [0 => $member];
            }
 
            foreach ($member as $keyID)
            {
                if (array_key_exists($keyID, $list))
                {
                    $rewrite = true;
                    unset($list[$keyID]);
                }
            }
 
            if ($rewrite)
            {
                if (empty($list))
                {
                    self::$engine->delete($key);
                }
                else
                {
                    $this->set($key, 0, $list);
                }
            }
            unset($list);
        }
    }
}