[will@freestuff ~]$ psql freedb
Welcome to psql 8.1.21, the PostgreSQL interactive terminal.

Type:  \copyright for distribution terms
       \h for help with SQL commands
       \? for help with psql commands
       \g or terminate with semicolon to execute query
       \q to quit

freedb=# \q
[will@freestuff ~]$ cat test.php
<?php

$db = pg_connect( "host=localhost dbname=freedb user=will password=password" ) or die( "Could not connect" );

?>
[will@freestuff ~]$ php test.php
PHP Warning:  pg_connect(): Unable to connect to PostgreSQL server: FATAL:  Ident authentication failed for user "will" in /home/will/test.php on line 3
Could not connect[will@freestuff ~]$