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run code in 300+ PHP versions simultaneously

@ 2019-03-08T12:35:01Z

<?php
$html = '<div id="top"><h3><span class="header" id="first_set">My Heading</span></h3>
<ul><li>Text Text Text</li></ul>
<ul><li>Text Text Text</li></ul>
<ul><li>Text Text Text</li></ul>
<h3><span class="header" id="second_set">My Second Heading</span></h3>
<ul><li>Text Text Text</li></ul>
<ul><li>Text Text Text</li></ul>
<ul><li>Text Text Text</li></ul>
<h3><span class="header" id="third_set">My Third Heading</span></h3>
<ul><li>Text Text Text</li></ul>
<ul><li>Text Text Text</li></ul>
<ul><li>Text Text Text</li></ul>
</div>';
$doc = new DOMDocument();
$doc->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$div = $doc->createElement('div');
$node = $doc->getElementById('top');
$xpath = new DOMXPath($doc);
$headers = 0;
foreach ($xpath->query('./*', $node) as $child) {
    switch ($child->nodeName) {
        case 'h3':
            $headers++;
            if ($headers == 2) {
                $node->replaceChild($div, $child);
                $div->appendChild($child);
            }
            else if ($headers == 3) {
                break 2;
            }
            break;
        case 'ul':
            if ($headers == 2) $div->appendChild($child);
            break;
        default:
            // if a non-ul element after the 2nd header, exit the loop
            if ($headers == 2) break 2;
            break;
    }
}
echo $doc->saveHTML();

Output for 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.4 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1: <div id="top"><h3><span class="header" id="first_set">My Heading</span></h3> <ul><li>Text Text Text</li></ul> <ul><li>Text Text Text</li></ul> <ul><li>Text Text Text</li></ul> <div><h3><span class="header" id="second_set">My Second Heading</span></h3><ul><li>Text Text Text</li></ul><ul><li>Text Text Text</li></ul><ul><li>Text Text Text</li></ul></div> <h3><span class="header" id="third_set">My Third Heading</span></h3> <ul><li>Text Text Text</li></ul> <ul><li>Text Text Text</li></ul> <ul><li>Text Text Text</li></ul> </div>
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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