(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
pg_ping — Ping database connection
pg_ping(?PgSql\Connection $connection = null): bool
pg_ping() pings a database connection and tries to reconnect it if it is broken.
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().
As of PHP 8.1.0, using the default connection is deprecated.
| Version | Description |
|---|---|
| 8.1.0 | The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected. |
| 8.0.0 | connection is now nullable. |
Example #1 pg_ping() example
<?php
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
echo "An error occurred.\n";
exit;
}
if (!pg_ping($conn))
die("Connection is broken\n");
?>
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https://www.php.net/manual/en/function.pg-ping.php