Remove a child with a specific attribute, in SimpleXML for PHP

Question

I have several identical elements with different attributes that I\'m accessing with SimpleXML:

Answer 1

Since I encountered the same fatal error as Gerry and I'm not familiar with DOM, I decided to do it like this:

$item = $xml->xpath("//seg[@id='A12']");
$page = $xml->xpath("/data");
$id = "A12";

if (  count($item)  &&  count($page) ) {
    $item = $item[0];
    $page = $page[0];

     // find the numerical index within ->children().
    $ch = $page->children();
    $ch_as_array = (array) $ch;

    if (  count($ch_as_array)  &&  isset($ch_as_array['seg'])  ) {
        $ch_as_array = $ch_as_array['seg'];
        $index_in_array = array_search($item, $ch_as_array);
        if (  ($index_in_array !== false)
          &&  ($index_in_array !== null)
          &&  isset($ch[$index_in_array])
          &&  ($ch[$index_in_array]['id'] == $id)  ) {

             // delete it!
            unset($ch[$index_in_array]);

            echo "
"; var_dump($xml); echo "
";
        }
    }  // end of ( if xml object successfully converted to array )
}  // end of ( valid item  AND  section )