Bing found these results
PHP: Sessions support - Manual
apache - PHP session and memcacheD - Stack Overflow
Is it recommended to store PHP Sessions in MemCache?
Session VS File VS Memcache for a Cache in PHP?
PHP: カスタムセッションハンドラ - Manual
What is the most reliable session storage in PHP: Memcache, …
PHP: Sessions support - Manual - php.sh
PHP Sessions with Memcached | Codementor
Memcached as a PHP Session Handler - Josh Sherman - Josh tronic
php.ini session memcache handler - Stack Overflow