For me, this function returns FALSE if uid does not match a message in the current mailbox.
(PHP 4, PHP 5, PHP 7, PHP 8)
imap_msgno — 指定した UID のメッセージ番号を返す
$imap
, int $message_uid
): int
指定した message_uid
のメッセージ番号を返します。
この関数は、imap_uid() の逆の動作となります。
指定した message_uid
のメッセージ番号を返します。
For me, this function returns FALSE if uid does not match a message in the current mailbox.
<p>Note that imap_msgno() doesn't ever give you an error message. So, assuming you're passing about message numbers as a UID, be warned that:</p>
<p>$msguid = false;<br>
$msgno = imap_msgno( $your_initialized_connection, $msguid );</p>
<p>Will leave ($msgno==1) - this is probably not what you want, and it's surprisingly easy to miss while you're doing the basic testing.</p>