(PHP 4, PHP 5, PHP 7, PHP 8)
imap_undelete — Unmark the message which is marked deleted
imap_undelete(IMAP\Connection $imap, string $message_nums, int $flags = 0): true
Removes the deletion flag for a specified message, which is set by imap_delete() or imap_mail_move().
imap
An IMAP\Connection instance.
message_nums A string representing one or more messages in IMAP4-style sequence format ("n", "n:m", or combination of these delimited by commas).
flags Always returns true.
| Version | Description |
|---|---|
| 8.1.0 | The imap parameter expects an IMAP\Connection instance now; previously, a valid imap resource was expected. |
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https://www.php.net/manual/en/function.imap-undelete.php