(PHP 4 >= 4.3.0, PHP 5)
pg_ping — Ping database connection
pg_ping() pings a database connection and tries to reconnect it if it is broken.
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() or pg_pconnect().
如果成功則回傳 TRUE,失敗則回傳 FALSE。
Example#1 pg_ping() example
<?php
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
echo "An error occured.\n";
exit;
}
if (!pg_ping($conn))
die("Connection is broken\n");
?>