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File Content: `MemcachedSessionHandler.php`

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpFoundation\Session\Storage\Handler;

/**
 * Memcached based session storage handler based on the Memcached class
 * provided by the PHP memcached extension.
 *
 * @see https://php.net/memcached
 *
 * @author Drak <drak@zikula.org>
 */
class MemcachedSessionHandler extends AbstractSessionHandler
{
    private $memcached;

    /**
     * @var int Time to live in seconds
     */
    private $ttl;

    /**
     * @var string Key prefix for shared environments
     */
    private $prefix;

    /**
     * Constructor.
     *
     * List of available options:
     *  * prefix: The prefix to use for the memcached keys in order to avoid collision
     *  * ttl: The time to live in seconds.
     *
     * @throws \InvalidArgumentException When unsupported options are passed
     */
    public function __construct(\Memcached $memcached, array $options = [])
    {
        $this->memcached = $memcached;

        if ($diff = array_diff(array_keys($options), ['prefix', 'expiretime', 'ttl'])) {
            throw new \InvalidArgumentException(sprintf('The following options are not supported "%s".', implode(', ', $diff)));
        }

        $this->ttl = $options['expiretime'] ?? $options['ttl'] ?? null;
        $this->prefix = $options['prefix'] ?? 'sf2s';
    }

    /**
     * @return bool
     */
    #[\ReturnTypeWillChange]
    public function close()
    {
        return $this->memcached->quit();
    }

    /**
     * {@inheritdoc}
     */
    protected function doRead(string $sessionId)
    {
        return $this->memcached->get($this->prefix.$sessionId) ?: '';
    }

    /**
     * @return bool
     */
    #[\ReturnTypeWillChange]
    public function updateTimestamp($sessionId, $data)
    {
        $this->memcached->touch($this->prefix.$sessionId, $this->getCompatibleTtl());

        return true;
    }

    /**
     * {@inheritdoc}
     */
    protected function doWrite(string $sessionId, string $data)
    {
        return $this->memcached->set($this->prefix.$sessionId, $data, $this->getCompatibleTtl());
    }

    private function getCompatibleTtl(): int
    {
        $ttl = (int) ($this->ttl ?? \ini_get('session.gc_maxlifetime'));

        // If the relative TTL that is used exceeds 30 days, memcached will treat the value as Unix time.
        // We have to convert it to an absolute Unix time at this point, to make sure the TTL is correct.
        if ($ttl > 60 * 60 * 24 * 30) {
            $ttl += time();
        }

        return $ttl;
    }

    /**
     * {@inheritdoc}
     */
    protected function doDestroy(string $sessionId)
    {
        $result = $this->memcached->delete($this->prefix.$sessionId);

        return $result || \Memcached::RES_NOTFOUND == $this->memcached->getResultCode();
    }

    /**
     * @return int|false
     */
    #[\ReturnTypeWillChange]
    public function gc($maxlifetime)
    {
        // not required here because memcached will auto expire the records anyhow.
        return 0;
    }

    /**
     * Return a Memcached instance.
     *
     * @return \Memcached
     */
    protected function getMemcached()
    {
        return $this->memcached;
    }
}

Name	Size	Permission
AbstractSessionHandler.php	5158 bytes	0775
IdentityMarshaller.php	972 bytes	0775
MarshallingSessionHandler.php	2395 bytes	0775
MemcachedSessionHandler.php	3403 bytes	0775
MigratingSessionHandler.php	3661 bytes	0775
MongoDbSessionHandler.php	5367 bytes	0775
NativeFileSessionHandler.php	1991 bytes	0775
NullSessionHandler.php	1440 bytes	0775
PdoSessionHandler.php	37631 bytes	0775
RedisSessionHandler.php	3724 bytes	0775
SessionHandlerFactory.php	4888 bytes	0775
StrictSessionHandler.php	2737 bytes	0775

Command Bosku:

File Content: MemcachedSessionHandler.php

File Content: `MemcachedSessionHandler.php`