PHP で配列を使用して文字列内の複数の部分文字列を効率的に検索するにはどうすればよいですか?

function strposa($haystack, $needles=array(), $offset=0) {
    $chr = array();
    foreach($needles as $needle) {
        $res = strpos($haystack, $needle, $offset);
        if ($res !== false) $chr[$needle] = $res;
    }
    if(empty($chr)) return false;
    return min($chr);
}

function strposa(string $haystack, array $needles, int $offset = 0): bool {
    foreach($needles as $needle) {
        if(strpos($haystack, $needle, $offset) !== false) {
            return true; 
        }
    }
    return false;
}

$string = 'This string contains word "cheese" and "tea".';
$array = ['burger', 'melon', 'cheese', 'milk'];

if(strposa($string, $array)) {
    echo 'true'; // since "cheese" is found
}