php DOMDocument removeChild throws exception of not found

remove is failing with not found exception.

PHP Fatal error:  Uncaught DOMException: Not Found Error

$document = new DOMDocument();
$raw = '
some text
<a href="sad" sometag="true">linkkkk</a>
more text
';
$document->loadHTML($raw);

$links = $document->getElementsByTagName('a');
$a = $links->item(0);

$document->removeChild($a);

Answer

You could remove it from the parentNode from $a

$document = new DOMDocument();
$raw = '
some text
<a href="sad" sometag="true">linkkkk</a>
more text
';
$document->loadHTML($raw);

$links = $document->getElementsByTagName('a');
$a = $links->item(0);
$a->parentNode->removeChild($a);