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# imap_msgno

(PHP 3 >= 3.0.3, PHP 4, PHP 5)

imap_msgno -- Gets the message sequence number for the given UID

## 说明

int imap_msgno ( resource imap_stream, int uid )

Returns the message sequence number for the given `uid`.

This function is the inverse of imap_uid().

## 参数

`imap_stream`

  An IMAP stream returned by imap_open().

`uid`

  The message UID

## 返回值

Returns the message sequence number for the given `uid`.

## 参见

imap_uid()

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