pg_connection_status retourne le statut de la connexion connection .
PGSQL_CONNECTION_OK ou PGSQL_CONNECTION_BAD .
<?php $dbconn = pg_connect("dbname=publisher") or die("Connexion impossible"); $stat = pg_connection_status($dbconn); if ($stat === PGSQL_CONNECTION_OK) { echo 'Connexion ok'; } else { echo 'Connexion erronée'; } ?>