(PHP 4 >= 4.3.0, PHP 5)
pg_ping — Ping database connection
$connection
] )pg_ping() pings a database connection and tries to reconnect it if it is broken.
connection
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 occurred.\n";
exit;
}
if (!pg_ping($conn))
die("Connection is broken\n");
?>