Gets and sort messages

说明

array imap_sort ( resource $imap_stream , int $criteria , int $reverse [, int $options = 0 [, string $search_criteria = NULL [, string $charset = NULL ]]] )

Gets and sorts message numbers by the given parameters.

参数

imap_stream

由 imap_open() 返回的 IMAP 流。

criteria

Criteria can be one (and only one) of the following:

SORTDATE - message Date
SORTARRIVAL - arrival date
SORTFROM - mailbox in first From address
SORTSUBJECT - message subject
SORTTO - mailbox in first To address
SORTCC - mailbox in first cc address
SORTSIZE - size of message in octets

reverse

Set this to 1 for reverse sorting

options

The options are a bitmask of one or more of the following:

SE_UID - Return UIDs instead of sequence numbers
SE_NOPREFETCH - Don't prefetch searched messages

search_criteria

IMAP2-format search criteria string. For details see imap_search().

charset

MIME character set to use when sorting strings.

返回值

Returns an array of message numbers sorted by the given parameters.