// Initialization of memcache client.
mem = new Memcache ()
mem.add_server ("10.0.0.1:12345")
mem.add_server ("10.0.0.2:12345")
mem.add_server ("10.0.0.3:12345")

// Construct key for database query.
sql = "SELECT * FROM user WHERE name = ?"
key = "SQL:" + hash (sql) + name

// Try to fetch value from memcache.
if (defined (result = mem.get (key))) return (result)

// Fetch value from database and populate memcache otherwise.
result = execute_query (sql, name)
mem.set (key, result, lifetime)
return (result)

// Example adjusted from documentation, see references.