imap_undelete

(PHP 4, PHP 5, PHP 7)

imap_undelete — Unmark the message which is marked deleted

bool imap_undelete ( resource $imap_stream , int $msg_number [, int $flags = 0 ] )

Removes the deletion flag for a specified message, which is set by imap_delete() or imap_mail_move().

成功时返回 TRUE，或者在失败时返回 FALSE。