pdo_pgsql and php on mac os x yosemite -

so compiled pdo_pgsql source , added extension php.ini

phpinfo() 

says

pdo  pdo support enabled pdo drivers mysql, sqlite, pgsql  pdo_pgsql  pdo driver postgresql   enabled postgresql(libpq) version   9.4.2 module version  1.0.2 

but

pg_connect("host=localhost dbname=dbname user=username password=password") 

gives

call undefined function pg_connect() 

yes, did restart apache.

server_software apache/2.4.10 (unix) php/5.5.20 

i on mac os x yosemite 10.10.3

thanks!

how make connection so:

    try {         $conn = new pdo('pgsql:host=localhost;port=port-number;dbname=database','db-user','db-pass');          $conn->query("set names utf8");     } catch (pdoexception $e) {         die('connection failed: ' . $e->getmessage());     }