Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Binary safe case-insensitive string comparison
strcasecmp(string $string1string $string2): int
    public function prefetch()

    {

        return 
strcasecmp($this->server->get('HTTP_X_MOZ') ?? '''prefetch') === ||

               
strcasecmp($this->headers->get('Purpose') ?? '''prefetch') === 0;

    }
    public function prefetch()

    {

        return 
strcasecmp($this->server->get('HTTP_X_MOZ') ?? '''prefetch') === ||

               
strcasecmp($this->headers->get('Purpose') ?? '''prefetch') === 0;

    }