postgresql on fedora5 with php and tell me what is the use phpincludes files?

plz help me regarding my project on fedora5 with php and postgresql.
my doubts are:
how to dump a database to postgresql on fedora5
whether from command prompt
[root@localhost ~]#psql -U database ownername
databasename<databse.sql
is this wrong help me
next iam getting problem with smarty class error which not opening my index.php page on my server
the index.php code is this
and i suppose is it same for all php based projects or not plz tell me clearly
------------------------------------------------------------------------------------
<?php

session_start();

require_once("adodb.inc.php");

require_once("Smarty.class.php");

require_once("service_mappings.php");

require_once("connection.php");



$service=register("service","LOGIN");

$params=getParameters();



$smarty=new Smarty;



if(array_key_exists($service, $service_mappings))

{

include_once($service_mappings[$service].".php");

$obj=new $service_mappin

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