How to use mysqli with php5.6

[email protected] (stevens) Sun, 12 Jun 2016 17:44:28 +0800

Newsgroups	php.db
Message-ID	<[email protected]>

Hi,
I have installed php5.6 by command "pkg install php-56“ in solaris 11 x64,and I want to use mysqli extension to connect mysql 5.5 database,but I found that I can’t find any mysqli extension.Any one can tell me how to use mysqli extension?Any suggestions should be appreciated!
                           stevens