title: How to connect php 7 with oracle 12c using oci8 in ubuntu 16.04
body: <p>I am using php 7 with Oracle 12c in ubuntu16.04.Want to connect php with Oracle database using oci8. When I type php - m|grep oci8 then it shows it is installed. But when I try to connect it shows "could not find driver". 
  Many solutions are shown in windows but not in Linux. I can connect oracle using a username and password and fire query in oracle query console.</p>