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run code in 300+ PHP versions simultaneously

@ 2014-07-09T11:31:11Z

<?php

function stripTagFormatting(DOMText $textNode) {
    $css = [];
    $existingStyles = '';

    $currentNode = $textNode->parentNode;
    do {
        switch (strtolower($currentNode->tagName)) {
            case 'font':
                if ($currentNode->hasAttribute('color') && !isset($css['color'])) {
                    $css['color'] = $currentNode->getAttribute('color');
                }
                if ($currentNode->hasAttribute('size') && !isset($css['font-size'])) {
                    $css['font-size'] = $currentNode->getAttribute('size') . 'px';
                }
                if ($currentNode->hasAttribute('face') && !isset($css['font-family'])) {
                    $css['font-family'] = $currentNode->getAttribute('face');
                }
                break;

            case 'b':
                if (!isset($css['font-weight'])) {
                    $css['font-weight'] = 'bold';
                }
                break;

            case 'i':
                if (!isset($css['font-style'])) {
                    $css['font-style'] = 'italic';
                }
                break;

            default:
                if ($currentNode->hasAttribute('style')) {
                    $existingStyles = $currentNode->getAttribute('style');
                }
                break 2;
        }
    } while($currentNode->parentNode->childNodes->length == 1 && $currentNode = $currentNode->parentNode);
    
    var_dump($currentNode->tagName, $css);
}

$html = '<FONT FACE="League" SIZE="15" COLOR="#000000"><font COLOR="#ff00ff" SIZE="18"><b><font SIZE="23"><font SIZE="27"><font SIZE="23"><font SIZE="18"><font SIZE="23">Moet Flip make-up dragen?  <br />Stem mee in de poll!!</font></font></font></font></font></b></font><br /></FONT>';

$dom = new DOMDOcument();
$dom->loadHTML($html);

$xpath = new DOMXPath($dom);

$nodes = $xpath->evaluate("/html/body//text()");

foreach ($nodes as $node) {
    stripTagFormatting($node);
}

var_dump($dom->saveHTML());

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: string(4) "font" array(3) { ["font-size"]=> string(4) "23px" ["font-weight"]=> string(4) "bold" ["color"]=> string(7) "#ff00ff" } string(4) "font" array(3) { ["font-size"]=> string(4) "23px" ["font-weight"]=> string(4) "bold" ["color"]=> string(7) "#ff00ff" } string(404) "<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html><body><font face="League" size="15" color="#000000"><font color="#ff00ff" size="18"><b><font size="23"><font size="27"><font size="23"><font size="18"><font size="23">Moet Flip make-up dragen? <br>Stem mee in de poll!!</font></font></font></font></font></b></font><br></font></body></html> "
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/LUMED on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/LUMED on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/LUMED on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_STRING, expecting ')' in /in/LUMED on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `')'' in /in/LUMED on line 3
Process exited with code 255.

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