(PHP 4, PHP 5, PHP 7, PHP 8)
imap_uid — Devuelve el UID de un mensaje
imap_uid() devuelve el UID para el mensaje
msgno. Un UID es un identificador único
que nunca cambia, mientras que el número del mensaje en
la lista de mensajes puede cambiar con cualquier modificación
del buzón de correo.
Es la función inversa de imap_msgno().
El UID de un mensaje dado.
| Versión | Descripción |
|---|---|
| 8.1.0 |
The imap parameter expects an IMAP\Connection
instance now; previously, a valid imap recurso was expected.
|
Nota:
Esta funcionalidad no es soportada por los buzones de correo POP3.
I would like to point out that, at least in the case of Gmail, the UIDs of emails are changed if they are moved from one folder to another. Even if moved back to the same folder the UIDs get incremented and thus changed.
I found this the hard way after relaying on the notion that UIDs do not change as I found almost everywhere in the docs.Please note that message_id in the header is NOT the UID - and its dangerous to use as many mail progs don't put a message id inBe aware that the uid is unique in a single mailbox. That means a message can have as much uids as mailboxesThe uid will change in case of unsing imap_expunge. Be shure that
all work ist done before using imap_expunge.