pg_ping

(PHP 4 >= 4.3.0)

pg_ping -- Ping 数据库连接

说明

bool pg_ping ( resource connection)

pg_ping() ping 数据库连接,如果中断则尝试重新连接。如果连接在活动状态返回 TRUE,否则返回 FALSE

参见o pg_connection_status()pg_connection_reset()

例子 1. PostgreSQL ping

<?php 
$conn = pg_pconnect ("dbname=publisher");
if (!$conn) {
    echo "An error occured.\n";
    exit;
}

if (!pg_ping($conn))
    die("Connection is broken\n");
?>