phpinfo() reports the number of open connections incorrectly. It keeps on telling that there are only 1 or 2 of them, while there are dozens of postgres processes in memory.
When I try to use persistent connections to PostgreSQL database, PHP just opens new ones instead of reusing the already open one.
Because of this, PHP doesn't honour constraints from php.ini and keeps opening connections until PostgreSQL reaches its connection limit and refuses to accept more.

I'm using PostgreSQL 7.0, Apache 1.3.12 rus/PL29.5

PHP was configured with the following options:
--with-apache=../apache_1.3.12rusPL29.5 \
--with-mod_charset \
--with-pgsql=/usr \
--with-zlib=/usr \
--with-config-file-path=/etc \
--without-mysql \
--disable-session \
--enable-track-vars

here is a part of my php.ini which deals with PostgreSQL
[PostgresSQL]
pgsql.allow_persistent  =       On
pgsql.max_persistent    =       5
pgsql.max_links         =       10