[php-src] Issue #11469: PHP 8.3 regression DomNode->value setting

Issue: https://github.com/php/php-src/issues/11469 Author: andypost ### Description The following code: ```php <?php $document = <<<EOD <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head> <body> <img data-caption="This is a &lt;a href=&quot;https://www.drupal.org&quot;&gt;quick&lt;/a&gt; test…" src="llama.jpg" /> </body> </html> EOD; $dom = new \DOMDocument(); $dom->loadHTML($document, LIBXML_NOBLANKS); $xpath = new \DOMXPath($dom); foreach ($xpath->query('//@*[starts-with(name(.), "data-")]') as $node) { $value = $node->value; var_dump($value); $value = htmlspecialchars($value, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); var_dump($value); $node->value = $value; var_dump($node->value); } ``` Resulted in this output: ``` string(60) "This is a <a href="https://www.drupal.org">quick</a> test…" string(82) "This is a &lt;a href=&quot;https://www.drupal.org&quot;&gt;quick&lt;/a&gt; test…" string(82) "This is a &lt;a href=&quot;https://www.drupal.org&quot;&gt;quick&lt;/a&gt; test…" ``` But I expected this output instead: ``` string(60) "This is a <a href="https://www.drupal.org">quick</a> test…" string(82) "This is a &lt;a href=&quot;https://www.drupal.org&quot;&gt;quick&lt;/a&gt; test…" string(60) "This is a <a href="https://www.drupal.org">quick</a> test…" ``` This is a cause of few tests failed in Drupal HEAD https://www.drupal.org/project/drupal/issues/3366843 ### PHP Version PHP 8.3.0-alpha1 ### Operating System Alpinelinux, Debian