A PostgreSQL database module for PHP

The php-pgsql package includes a dynamic shared object (DSO) that can
be compiled in to the Apache Web server to add PostgreSQL database
support to PHP. PostgreSQL is an object-relational database management
system that supports almost all SQL constructs. PHP is an
HTML-embedded scripting language. If you need back-end support for
PostgreSQL, you should install this package in addition to the main
php package.