(PHP 4, PHP 5, PHP 7)
imap_sort — Gets and sort messages
imap_sort ( resource $imap_stream , int $criteria , int $reverse [, int $options = 0 [, string $search_criteria = null [, string $charset = null ]]] ) : array|false
Gets and sorts message numbers by the given parameters.
imap_stream
An IMAP stream returned by imap_open().
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.
Returns an array of message numbers sorted by the given parameters, or false on failure.
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.imap-sort.php