PYTHON pg_connect

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Python replacement for PHP's pg_connect [ edit | history ]
import psycopg2

db_connection = psycopg2.connect(host="my host", database="my database", user="myself", password="my rich aunts birthday")
db_handle = db_connection.cursor()


http://initd.org/psycopg/docs/usage.html

PHP pg_connect

PHP original manual for pg_connect [ show | php.net ]

pg_connect

(PHP 4, PHP 5)

pg_connectOpen a PostgreSQL connection

Description

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
?>

See Also

  • pg_pconnect() - Open a persistent PostgreSQL connection
  • pg_close() - Closes a PostgreSQL connection
  • pg_host() - Returns the host name associated with the connection
  • pg_port() - Return the port number associated with the connection
  • pg_tty() - Return the TTY name associated with the connection
  • pg_options() - Get the options associated with the connection
  • pg_dbname() - Get the database name