(PHP 4, PHP 5, PHP 7, PHP 8)

imap_pingCheck if the IMAP stream is still active


imap_ping(IMAP\Connection $imap): bool

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.

Elenco dei parametri


An IMAP\Connection instance.

Valori restituiti

Returns true if the stream is still alive, false otherwise.

Log delle modifiche

Versione Descrizione
8.1.0 The imap parameter expects an IMAP\Connection instance now; previously, a valid imap resource was expected.


Example #1 imap_ping() Example


= imap_open("{}", "mailadmin", "password");

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


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