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$a = '<div>post body</div>';

$html = htmlqp($a, NULL, array('convert_to_encoding' => 'UTF-8'));

echo $html->html(); # <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html><body><div>post body</div></body></html>

echo $html->xhtml(); # <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html><body><div>post body</div></body></html>

echo $html->innerHTML();  # <body><div>post body</div></body>
echo $html->innerXHTML(); # <body><div>post body</div></body>
echo $html->text();       # post body