php man page for pg_port

PG_PORT(3)																PG_PORT(3)

pg_port - Return the port number associated with the connection

SYNOPSIS
       int pg_port ([resource  $connection])

DESCRIPTION
       pg_port(3) returns the port number that the given PostgreSQL $connection resource is connected to.

PARAMETERS
	      o $connection
		- PostgreSQL database connection resource. When $connection is not present, the default connection is used. The default connection
		is the last connection made by pg_connect(3) or pg_pconnect(3).

RETURN VALUES
	An int containing the port number of the database server the $connection is to, or FALSE on error.

EXAMPLES
       Example #1

	      pg_port(3) example

	      <?php
	      $pgsql_conn = pg_connect("dbname=mark host=localhost");

	      if ($pgsql_conn) {
		 print "Successfully connected to port: " . pg_port($pgsql_conn) . "<br/>
";
	      } else {
		 print pg_last_error($pgsql_conn);
		 exit;
	      }
	      ?>

PHP Documentation Group 														PG_PORT(3)