HTML Add Style Link tag

Html.php

<?php

class Html
{
    const REL_STYLESHEET = 'stylesheet';
    const REL_PRELOAD = 'preload';

    /**
     * style css link tagı return eder.
     */
    public static function addStyle(string $path, string $rel = 'stylesheet', array $extraAttributes = []): string
    {
        $formattedPath = addslashes($path);

        $html = "<link rel=\"{$rel}\" href=\"{$formattedPath}\"";

        if (!empty($extraAttributes)) {
            foreach ($extraAttributes as $key => $extraAttribute) {
                if (!is_string($key) || blank($key)) {
                    [$attributeKey, $attributeValue] = [$extraAttribute, null];
                } else {
                    [$attributeKey, $attributeValue] = [$key, $extraAttribute];
                }

                $html .= " {$attributeKey}";

                if (!is_null($attributeValue)) {
                    $html .= "=\"{$attributeValue}\"";
                }
            }
        }

        $html .= '>';

        return $html;
    }

    /**
     * Browser uyumluluğuna göre preload style tagı döner.
     */
    public static function addPreloadStyle(string $path, array $extraAttributes = []): string
    {
        $rel = self::REL_PRELOAD;

        if ('Firefox' === \Agent::browser()) {
            $rel = self::REL_STYLESHEET;

        } else {
            $extraAttributes['onload'] = 'this.onload=null;this.rel=\'stylesheet\'';
        }

        return self::addStyle($path, $rel, $extraAttributes);
    }
}