Description
array 
imap_fetch_overview ( resource imap_stream, string sequence [, int options])
     This function fetches mail headers for the given
     sequence and returns an overview of their
     contents. sequence will contain a sequence
     of message indices or UIDs, if flags
     contains FT_UID. The returned value is an array of objects
     describing one message header each:
     
        subject - the messages subject
       
        from - who sent it
       
        date - when was it sent
       
        message_id - Message-ID 
       
        references - is a reference to this message id
       
        size - size in bytes
       
        uid - UID the message has in the mailbox
       
        msgno - message sequence number in the maibox
       
        recent - this message is flagged as recent
       
        flagged -  this message is flagged
       
        answered -  this message is flagged as answered
       
        deleted -  this message is flagged for deletion
       
        seen -  this message is flagged as already read
       
        draft -  this message is flagged as being a draft
       
    
     
例子 1. imap_fetch_overview() example 
<?php $mbox = imap_open("{your.imap.host:143}", "username", "password")      or die("can't connect: " . imap_last_error());   $overview = imap_fetch_overview($mbox, "2,4:6", 0);   if (is_array($overview)) {         reset($overview);         while (list($key, $val) = each($overview)) {                 echo      $val->msgno                 . " - " . $val->date                 . " - " . $val->subject                 . "\n";         } }   imap_close($mbox); ?>
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