imap_ping

Description

bool imap_ping ( resource imap_stream )

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

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.

例子 1. imap_ping() Example
<?php $imap = imap_open("{your.imap.host}", "mailadmin", "password"); // after some sleeping if (!imap_ping($imap)) { // do some stuff to reconnect } ?>

add a note User Contributed Notes

28-Dec-2002 08:28


This is a great solution for a webmail class if you want to make sure that a user is still logged in. Example:



<?php

if(!(imap_ping($stream)) {

die("The user is no longer logged in.");

?>

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