If you need to use the uid instead of msgno use
imap_clearflag_full($stream, implode(',', $flags), '\\DELETED', ST_UID);PHP - Manual: imap_undelete
2025-10-24
(PHP 4, PHP 5, PHP 7, PHP 8)
imap_undelete — Unmark the message which is marked deleted
Removes the deletion flag for a specified message, which is set by imap_delete() or imap_mail_move().
imapIMAP\Connection 实例。
message_nums
A string representing one or more messages in IMAP4-style sequence format
("n", "n:m", or combination of these
delimited by commas).
flags
总是返回 true。
| 版本 | 说明 |
|---|---|
| 8.1.0 |
现在 imap 参数接受 IMAP\Connection
实例,之前接受有效的 imap resource。
|
If you need to use the uid instead of msgno use
imap_clearflag_full($stream, implode(',', $flags), '\\DELETED', ST_UID);The imap_delete function allows the option to use a UID for the message number but the imap_undelete function does not.官方地址:https://www.php.net/manual/en/function.imap-undelete.php