Update MemcachedHandler.php

memcached.sess_prefix setting missing.

Author: nowackipawel

system/Session/Handlers/MemcachedHandler.php

@@ -94,6 +94,11 @@ public function __construct(BaseConfig $config, string $ipAddress)
 		{
 			$this->keyPrefix .= $this->ipAddress . ':';
 		}
+		
+		if(!empty($this->keyPrefix))
+		{
+			ini_set('memcached.sess_prefix', $this->keyPrefix);
+		}
 
 		$this->sessionExpiration = $config->sessionExpiration;
 	}