DOMDocument警告解析html文本实体'nbsp'未定义[重复]

I try parse an utf-8 html text but I get this error

Warning: DOMDocumentFragment::appendXML(): Entity: line 1: parser error : Entity 'nbsp' not defined

I define:

$dom = new DOMDocument();
$dom->loadHtml(mb_convert_encoding($richText, 'HTML-ENTITIES', "UTF-8"));

this is full code:

function putBetweenText($richText,$webinfo,$url,$keywords,$type = null,$display,$inline)
{

$dom = new DOMDocument();
$dom->loadHtml(mb_convert_encoding($richText, 'HTML-ENTITIES', "UTF-8"));

$xpath = new DOMXPath($dom);
foreach($xpath->query('//text()[not(ancestor::a)]') as $node)
{
    $replaced = str_ireplace('.', '.'.randomText($webinfo,$url,$richText,null,$display,$inline), $node->wholeText);
    $newNode  = $dom->createDocumentFragment();
    $newNode->appendXML($replaced);
    $node->parentNode->replaceChild($newNode, $node);
}
return mb_substr($dom->saveXML($xpath->query('//body')->item(0)), 6, -7, "UTF-8");

}

</div>

Change:

putBetweenText($richText,$webinfo,$url,$keywords,$type = null,$display,$inline)

to:

 putBetweenText($richText, $webinfo, $url, $keywords, $type , $display, $inline)

You can call the function similar to:

putBetweenText('rich text value', $webinfo_setFromHere, 'http://www.google.com', $keywords_array, 'integer' , 'TRUE', $makeIt_inline)

nbsp is not inside an echo statement wherever it is.

You can't put variable assignments into functions, you can only pass them in, or say they're from outside the function($var1, $var2, $var3) by saying global.

$type = null is illegal. You should assign variables being received, but not passed into the function like: global $a, $b;