PostgreSQL Functions
PHP Manual

pg_ping

Ping database connection

Description

bool pg_ping(PgSql\Connectionnull $connection = null)

pg_ping pings a database connection and tries to reconnect it if it is broken.

Parameters

connection

An PgSql\Connection instance. When connection is null, the default connection is used. The default connection is the last connection made by pg_connect or pg_pconnect.

Warning

As of PHP 8.1.0, using the default connection is deprecated.

Return Values

Returns true on success or false on failure.

Changelog

Version Description
8.1.0 The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected.
8.0.0 connection is now nullable.

Examples

Example #1 pg_ping example

<?php 
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
  echo "An error occurred.\n";
  exit;
}

if (!pg_ping($conn))
  die("Connection is broken\n");
?>

See Also

  • pg_connection_status
  • pg_connection_reset