(PHP 4, PHP 5, PHP 7, PHP 8)
pg_host — Returns the host name associated with the connection
   pg_host() returns the host name of the given
   PostgreSQL connection instance is
   connected to.
  
connectionAn 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().
   A string containing the name of the host the
   connection is to, or an empty string on error.
  
| Version | Description | 
|---|---|
| 8.1.0 | The connectionparameter expects an PgSql\Connection
  instance now; previously, a resource was expected. | 
| 8.0.0 | connectionis now nullable. | 
Example #1 pg_host() example
<?php
$pgsql_conn = pg_connect("dbname=mark host=localhost");
if ($pgsql_conn) {
   print "Successfully connected to: " . pg_host($pgsql_conn) . "<br/>\n";
} else {
   print pg_last_error($pgsql_conn);
   exit;
}
?>