Stdlib: DOMNode::hasAttributes() — attribute probe parity (#14469)

[PurHur]

Summary

• Implement DOMNode::hasAttributes() in ext/dom/VmDom.php per php-src ext/dom/node.c (dom_node_has_attributes)
• Register VM method on DOMNode; excludes xmlns / xmlns:prefix namespace declaration attributes
• PHP-in-PHP only — no runtime/*.c growth

Closes #14469

php-src reference

• ext/dom/node.c — dom_node_has_attributes (element with properties != NULL)

Verification

php bin/vm.php test/repro/maintainer_gap_dom_element_has_attributes.php
# ok

php bin/vm.php -r '$d=new DOMDocument();$d->loadXML("<r a=\"1\"/>"); var_dump($d->documentElement->hasAttributes());'
# bool(true)

php bin/compile.php -l test/repro/maintainer_gap_dom_element_has_attributes.php
# exit 0

./vendor/bin/phpunit test/unit/DomModuleTest.php --filter has_attributes
# OK

Made with Cursor