   #PHP Manual IMAP, POP3 and NNTP functions imap_open imap_qprint

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                                   imap_ping

   (PHP 3, PHP 4 )
   imap_ping -- Check if the IMAP stream is still active

Description

   bool imap_ping ( resource imap_stream)

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

   imap_ping() function pings the stream to see it is 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. (As PHP scripts do not tend to run that long, I
   can hardly imagine that this function will be useful to anyone.)
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