PHP Client 2.1 error

PHP SDK
16

Here are the details:

ls -lh /usr/lib/php5/20121212
total 732K
-rwxr-xr-x 1 root root 650K May 27 22:23 couchbase.so
-rw-r--r-- 1 root root  88K Apr 20 15:50 curl.so
-rw-r--r-- 1 root root  67K Feb 18  2014 json.so
-rw-r--r-- 1 root root 136K Apr 20 15:50 opcache.so
-rw-r--r-- 1 root root 112K Apr 20 15:50 pdo.so
-rw-r--r-- 1 root root  31K Apr 20 15:50 readline.so
-rwxr-xr-x 1 root root  36K May 20 09:14 siphash.so

siphash working steadily.