1--TEST--
2compareDocumentPosition: attribute order for same element
3--EXTENSIONS--
4dom
5--FILE--
6<?php
7
8$dom = new DOMDocument();
9$dom->loadXML(<<<XML
10<?xml version="1.0"?>
11<container a="b" c="d" e="f" />
12XML);
13
14$attrs = $dom->documentElement->attributes;
15for ($i = 0; $i <= 2; $i++) {
16    for ($j = $i + 1; $j <= $i + 2; $j++) {
17        echo "--- Compare $i and ", ($j % 3), " ---\n";
18        if ($i < ($j % 3)) {
19            $expected = DOMNode::DOCUMENT_POSITION_FOLLOWING | DOMNode::DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC;
20        } else {
21            $expected = DOMNode::DOCUMENT_POSITION_PRECEDING | DOMNode::DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC;
22        }
23        var_dump($attrs[$i]->compareDocumentPosition($attrs[$j % 3]) === $expected);
24    }
25}
26
27?>
28--EXPECT--
29--- Compare 0 and 1 ---
30bool(true)
31--- Compare 0 and 2 ---
32bool(true)
33--- Compare 1 and 2 ---
34bool(true)
35--- Compare 1 and 0 ---
36bool(true)
37--- Compare 2 and 0 ---
38bool(true)
39--- Compare 2 and 1 ---
40bool(true)
41