note 107994 added to mongo.installation

i found that php.ini file located in /etc/php.ini , when i open the file, it is empty. i have added the "extension=mongo.so" in the file, but still it didn't work. Can you tell me how to resolve it? every answer is fully appreciated. thanks before ---- Server IP: 69.147.83.197 Probable Submitter: 202.138.244.80 ---- Manual Page -- http://www.php.net/manual/en/mongo.installation.php Edit -- https://master.php.net/note/edit/107994 Del: integrated -- https://master.php.net/note/delete/107994/integrated Del: useless -- https://master.php.net/note/delete/107994/useless Del: bad code -- https://master.php.net/note/delete/107994/bad+code Del: spam -- https://master.php.net/note/delete/107994/spam Del: non-english -- https://master.php.net/note/delete/107994/non-english Del: in docs -- https://master.php.net/note/delete/107994/in+docs Del: other reasons-- https://master.php.net/note/delete/107994 Reject -- https://master.php.net/note/reject/107994 Search -- https://master.php.net/manage/user-notes.php