imap_ping

Description

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.

Example 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 } ?>