only one value in forach php code example

Example 1: php foreach echo key value

foreach($page as $key => $value) {
  echo "$key is at $value";
}

Example 2: @foreach 1 numper

$i = 0;
foreach ( $signatures as $signature ) {
    if($i==10){
        break;
    }
    echo 'Signature ID: ' . $signature . $i;
    $i++;
}