pg_get_pid

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

pg_get_pid — Gets the backend's process ID

Description

pg_get_pid(PgSql\Connection $connection): int

pg_get_pid() gets the backend's (database server process) PID. The PID is useful to determine whether or not a NOTIFY message received via pg_get_notify() is sent from another process or not.

Parameters

connection: An PgSql\Connection instance.

Return Values

The backend database process ID.

Changelog

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

Examples

Example #1 PostgreSQL backend PID

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

/ Backend process PID. Use PID with pg_get_notify()
$pid = pg_get_pid($conn);
?>

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