calculating button size using foreach

I follow the example along the PHP and MySQL Web Development by Luke Welling and Laura Thomson. in chapter 6 there a //calculate button size that has each()function that deprecated in 7.2. According to the Visual studio hint. I could use foreach loop instead instead of each().

public function DisplayMenu($buttons)
{
    echo "<table width="100%" bgcolor="white" 
      cellpadding="4" cellspacing="4">n";
    echo "<tr>n";

    //calculate button size
    $width = 100 / count($buttons);

    while (list($name, $url) = each($buttons)) {
        $this->DisplayButton(
            $width,
            $name,
            $url,
            !$this->IsURLCurrentPage($url)
        );
    }
    echo "</tr>n";
    echo "</table>n";
}

public function IsURLCurrentPage($url)
{
    if (strpos($_SERVER['PHP_SELF'], $url) == false) {
        return false;
    } else {
        return true;
    }
}

Answer

I could use foreach loop instead instead of each().

Yes you can use foreach instead of each() as

foreach($buttons as $key => $value) {
        $this->DisplayButton(
            $width,
            $key,
            $value,
            !$this->IsURLCurrentPage($value)
        );
    }