resource pg_connect ( string connection_string [, int connect_type] )
pg_connect() opens a connection to a
PostgreSQL database specified by the
connection_string.
If a second call is made to pg_connect() with
the same connection_string as an existing connection, the
existing connection will be returned unless you pass
PGSQL_CONNECT_FORCE_NEW as
connect_type.
The old syntax with multiple parameters
$conn = pg_connect("host", "port", "options", "tty", "dbname")
has been deprecated.
Parameters
connection_string
The connection_string can be empty to use all default parameters, or it
can contain one or more parameter settings separated by whitespace.
Each parameter setting is in the form keyword = value. Spaces around
the equal sign are optional. To write an empty value or a value
containing spaces, surround it with single quotes, e.g., keyword =
'a value'. Single quotes and backslashes within the value must be
escaped with a backslash, i.e., \' and \\.
The currently recognized parameter keywords are:
host, hostaddr, port,
dbname, user,
password, connect_timeout,
options, tty (ignored), sslmode,
requiressl (deprecated in favor of sslmode), and
service. Which of these arguments exist depends
on your PostgreSQL version.
connect_type
If PGSQL_CONNECT_FORCE_NEW is passed, then a new connection
is created, even if the connection_string is identical to
an existing connection.
Return Values
PostgreSQL connection resource on success, FALSE on failure.
Examples
Example 1. Using pg_connect()
<?php $dbconn = pg_connect("dbname=mary"); //connect to a database named "mary"
$dbconn2 = pg_connect("host=localhost port=5432 dbname=mary"); // connect to a database named "mary" on "localhost" at port "5432"
$dbconn3 = pg_connect("host=sheep port=5432 dbname=mary user=lamb password=foo"); //connect to a database named "mary" on the host "sheep" with a username and password
$conn_string = "host=sheep port=5432 dbname=test user=lamb password=bar"; $dbconn4 = pg_connect($conn_string); //connect to a database named "test" on the host "sheep" with a username and password ?>
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