Pré-requis
On PHP 5.3, you may encounter this error.
Cannot create new link. Too many open links
I did with Archlinux. pgsql.so was active.
To resolve the issue, I had to active pdo.so and pdo_pgsql.so. Hope this helps!
Installation
Afin d'activer le support PostgreSQL, l'option --with-pgsql[=DIR] est nécessaire lors de la compilation de PHP. DIR est le chemin du dossier d'installation de PostgreSQL, et par défaut il vaut /usr/local/pgsql. Si le module de chargement dynamique est disponible, le module PostgreSQL peut être chargé avec la directive extension du fichier php.ini ou via la fonction dl().
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User Contributed Notes
Installation
samuel+php dot net at dionne-riel dot com
13-Aug-2010 07:31
Serjik
28-Aug-2009 09:54
On a Windows server, configured with Apache, adding the following line to httpd.conf to load libpq.dll can save you a lot of time :
LoadFile "C:/Program Files/PostgreSQL/8.4/bin/libpq.dll"
Note that you will have to change your folder accordingly to the installation path and version of PostgreSQL you have installed. Also note that having Apache and PostgreSQL on the same server for production environments is not recommended.
Cheers,
Serjik
Anto Binish Kaspar
08-Jul-2009 06:39
An easy way to install in ubuntu(debain)
Just run " apt-get install php5-pgsql "
Riyas
03-Jun-2009 08:48
If you chose NOT TO replace the newer (>5.2.6) php_pgsql.dll with the old one (from 5.2.5) as mentioned in the note above, then libpq.dll must be available in your PATH.
Also note that the libpq.dll that comes with your installation of PostgreSQL will not work. You have to use the one available here:
http://downloads.php.net/pierre/libpq-php-4.4.9-5.2.6.zip.
Place the extracted dll in your php root directory (where php.exe resides)
Simon
02-Mar-2009 09:59
Windows users should be mindful that since 5.2.6 it seems that the version of php_pgsql.dll supplied is dynamically linked and requires libpq.dll.
The version supplied in 5.2.5 is statically linked and does not have this dependency, if you cannot load the Postgres extension grab php_pgsql.dll from the 5.2.5 distribution