public static function get_dom_from_content($content)
{
$libxml_previous_state = libxml_use_internal_errors(true);
$dom = new DOMDocument();
// Wrap in dummy tags, since XML needs one parent node.
// It also makes it easier to loop through nodes.
// We can later use this to extract our nodes.
// Add utf-8 charset so loadHTML does not have problems parsing it. See: http://php.net/manual/en/domdocument.loadhtml.php#78243
$result = $dom->loadHTML('<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body>' . $content . '</body></html>');
libxml_clear_errors();
libxml_use_internal_errors($libxml_previous_state);
if (!$result) {
return false;
}
return $dom;
} public function test__is_node_empty__no__has_child()
{
$source = '<p><b></b></p>';
$dom = AMP_DOM_Utils::get_dom_from_content($source);
$node = $dom->getElementsByTagName('p')->item(0);
$this->assertFalse(AMP_DOM_Utils::is_node_empty($node));
}
