imap_ping

(PHP 4, PHP 5, PHP 7)

imap_ping — Check if the IMAP stream is still active

설명

bool imap_ping ( resource $imap_stream )

imap_ping() pings the stream to see if it's still active. It may discover new mail; this is the preferred method for a periodic "new mail check" as well as a "keep alive" for servers which have inactivity timeout.

인수

imap_stream: imap_open()이 반환한 IMAP 스트림입니다.

반환값

Returns TRUE if the stream is still alive, FALSE otherwise.

예제

Example #1 imap_ping() Example


<?php

$imap = imap_open("{imap.example.org}", "mailadmin", "password");

// after some sleeping
if (!imap_ping($imap)) {
    // do some stuff to reconnect
}

?>