PHP Manual: Returns a tree of threaded message

Description

arrayfalse imap_thread(IMAP\Connection $imap, int $flags = SE_FREE)

Gets a tree of a threaded message.

Parameters

imap: An IMAP\Connection instance.
flags

Return Values

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"]

Changelog

Version	Description
8.1.0	The `imap` parameter expects an IMAP\Connection instance now; previously, a valid `imap` resource was expected.

Examples

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);

?>