imap_ping
imap_ping
(PHP 4, PHP 5, PHP 7)
imap_ping — Check if the IMAP stream is still active
Description
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.
Parameters
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imap_stream
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An IMAP stream returned by <