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# imap_thread

(PHP 4 >= 4.1.0, PHP 5)

imap_thread -- Returns a tree of threaded message

## Description

array imap_thread ( resource stream_id [, int options] )

imap_thread() returns an associative array containing a tree of messages threaded by REFERENCES, or `FALSE` on error.

Every message in the current mailbox will be represented by three entries in the resulting array:

- $thread["XX.num"] - current message number

- $thread["XX.next"]

- $thread["XX.branch"]

Example 1. imap_thread() Example
`<?php // Here we're outputting the threads of a newsgroup, in HTML $nntp = imap_open('{news.example.com:119/nntp}some.newsgroup', '', ''); $threads = imap_thread($nntp); foreach ($threads as $key => $val) { $tree = explode('.', $key); if ($tree[1] == 'num') { $header = imap_headerinfo($nntp, $val); echo "<ul>\n\t<li>" . $header->fromaddress . "\n"; } elseif ($tree[1] == 'branch') { echo "\t</li>\n</ul>\n"; } } imap_close($nntp); ?>`

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