Persistent Connections with PHP and PostgreSQL

Dears,

I am using PostgreSQL 7.1.3 with PHP4.0.6.
I'm trying to establish persistent connections with pg_pconnect() function
from PHP.
There are some problems like there was too many connections being
established. Sometimes I get a warning "Supplied argument is not a valid
PostgreSQL link resource in...". Other times, when I try to connect with
psql, I get "Sorry, too many clients".

Suggestions?

Is it better to use persistent connections over normal connections (despite
the fact that I have to close all the normal connections whenever I open
one.)??

Thanks

Felipe Nascimento
MultiValor.com.br
Tel.: 55 21 2505 3900 / 2505 3911
Fax: 55 21 2505 3910
<mailto:felipe(dot)nascimento(at)multivalor(dot)com(dot)br>
<http://www.multivalor.com.br>