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(PHP 4, PHP 5, PHP 7, PHP 8)
imap_uid — This function returns the UID for the given message sequence number
$imap, int $message_num): int|false
This function returns the UID for the given message sequence number. An UID is a unique identifier that will not change over time while a message sequence number may change whenever the content of the mailbox changes.
This function is the inverse of imap_msgno().
imap
IMAP\Connection 实例。
message_num
The message number.
The UID of the given message.
| 版本 | 说明 |
|---|---|
| 8.1.0 |
现在 imap 参数接受 IMAP\Connection
实例，之前接受 资源(resource)。
|
注意:
This function is not supported by POP3 mailboxes.
