Два вложенных цикла foreach

foreach($domTree->find("dt.product-characteristics__label") as $element3)
echo $element3->plaintext.'<br />';
 
foreach($domTree->find("dd.product-characteristics__value") as $element4)
echo $element4->plaintext.'<br />';

$char1 = $domTree->find('dt.product-characteristics__label') ;
$char2 = $domTree->find('dd.product-characteristics__value') ;
echo $char1[0]->plaintext.'<br />';
echo $char2[0]->plaintext.'<br />';
echo $char1[1]->plaintext.'<br />';
echo $char2[1]->plaintext.'<br />';
echo $char1[2]->plaintext.'<br />';
echo $char2[2]->plaintext.'<br />';
echo $char1[3]->plaintext.'<br />';
echo $char2[3]->plaintext.'<br />';

$dt = []; $dd = [];
foreach($domTree->find("dt.product-characteristics__label") as $element3) {
$dt[] = $element3->plaintext;
}
foreach($domTree->find("dd.product-characteristics__value") as $element4) {
$dd[] = $element4->plaintext;
}
for ($i = 0, $size = count($dt); $i < $size; $i++) {
echo $dt[$i].' '.$dd[$i].'<br/>';
}

$labels = $domTree->find("dt.product-characteristics__label");
$values = $domTree->find("dd.product-characteristics__value");
 
foreach($labels as $element) {
    echo $element->plaintext;
    echo current($values)->plaintext; 
    next($values);
}