sgi/include/bd_pdo.php

<?php
$db_name = 'sgi';
try {
  	if(isset($_ENV['pruebas']))
    	$pdo = new PDO("pgsql:host=200.13.89.27;port=5432;dbname=".$db_name, "apsa_usr", 'Apsa&bd.##');
  	else
    	$pdo = new PDO("pgsql:host=200.13.89.8;port=5432;dbname=".$db_name, "apsa_usr", 'Apsa&bd.##');
} catch (PDOException $e) {
    echo "Error de conexión! ";
    print_r($e->getMessage());
    exit();
}
unset($db_name);
?>