(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_connection_status — Get connection status
pg_connection_status ( resource $connection ) : int
pg_connection_status() returns the status of the specified connection.
connection
PostgreSQL database connection resource.
PGSQL_CONNECTION_OK or PGSQL_CONNECTION_BAD.
Example #1 pg_connection_status() example
<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
$stat = pg_connection_status($dbconn);
if ($stat === PGSQL_CONNECTION_OK) {
echo 'Connection status ok';
} else {
echo 'Connection status bad';
}
?>
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https://www.php.net/manual/en/function.pg-connection-status.php