PDO_PGSQL DSN

(PECL PDO_PGSQL >= 0.1.0)

PDO_PGSQL DSN — Connecting to PostgreSQL databases

说明

The PDO_PGSQL Data Source Name (DSN) is composed of the following elements, delimited by spaces or semicolons:

DSN prefix: The DSN prefix is pgsql:.
host: The hostname on which the database server resides.
port: The port on which the database server is running.
dbname: The name of the database.
user: The name of the user for the connection. If you specify the user name in the DSN, PDO ignores the value of the user name argument in the PDO constructor.
password: The password of the user for the connection. If you specify the password in the DSN, PDO ignores the value of the password argument in the PDO constructor.

Note:
The bytea fields are returned as streams.

范例

Example #1 PDO_PGSQL DSN examples

The following example shows a PDO_PGSQL DSN for connecting to a PostgreSQL database:

pgsql:host=localhost;port=5432;dbname=testdb;user=bruce;password=mypass

PHP手册 - N: Connecting to PostgreSQL databases

用户评论:

tmairs at aasland dot com (04-May-2010 01:28)

The DSN syntax shown here did not work for me, but this did: <?php $dbh = new PDO("pgsql:dbname=$dbname;host=$host", $username, $password ); ?> As opposed to <?php $dbh = new PDO('pgsql:dbname=$dbname; host=$host; username=$username; password=$password'); ?> Which makes sense and is more PGSQL standard.

tim at buttersideup dot com (28-Dec-2007 06:35)

You can also connect to PostgreSQL via a UNIX domain socket by leaving the host empty. This should have less overhead than using TCP e.g.: $dbh = new PDO('pgsql:user=exampleuser dbname=exampledb password=examplepass'); In fact as the C library call PQconnectdb underlies this implementation, you can supply anything that this library call would take - the "pgsql:" prefix gets stripped off before PQconnectdb is called, and if you supply any of the optional arguments (e.g. user), then these arguments will be added to the string that you supplied... Check the docs for your relevant PostgreSQL client library: e.g. http://www.postgresql.org/docs/8.3/static/libpq-connect.html If you really want, you can use ';'s to separate your arguments - these will just be converted to spaces before PQconnectdb is called. Tim.

Chris C. (15-Nov-2005 05:12)

The PDO_PGSQL DSN should be seperated by semi-colons not spaces. It should follow the convention like the rest of the PDO DSNs. 'pgsql:dbname=example;user=nobody;password=change_me;host=localhost'