<?php
$bdcon = pg_connect("dbname=postgres");


$bdcon2 = pg_connect("host=187.108.198.120 port=5432 dbname=postgres");


$bdcon3 = pg_connect("host=187.108.198.120 port=5432 dbname=postgres user=postgres password=Pqalo987");


$con_string = "host=187.108.198.120 port=5432 dbname=postgres user=postgres password=Pqalo987";
$bdcon4 = pg_connect($con_string);

function getdb_FAILS() {
    return pg_connect("...") or die('falha conexão');
?>