php preg_match问题

Question

如何从preg_match 获得以下41P86246HOH7C1G4A983321910HDL63U9

input type ="text"value ="41P86246HOH7C1G4A983321910HDL63U9"id =""

Answer 1

DOMDocument::loadHTML("<$input>")->getElementsByTagName('input')
    ->item(0)->getAttribute('value');