const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch({
  headless: true,
     args: ['--no-sandbox', '--disable-setuid-sandbox']  
  });
  const page = await browser.newPage();
  await page.goto('');
  await browser.close();
})();

$str = 'a:4:{i:0;s:16:»Бергамот»;i:1;s:18:»Грейпфрут»;i:2;s:12:»Цитрус»;i:3;s:6:»Юзу»;}';
$pattern="/[А-я|A-z]{2,}/";
preg_match_all($pattern, $str, $matches);
var_dump ($matches);