This article provides an in-depth tutorial on how to use Goutte, a lightweight PHP library for web scraping, to extract data from external websites directly within your PHP script. The author guides readers through the process of installing and setting up Goutte, as well as demonstrating its functionality with practical code examples. Topics covered include finding HTML elements using CSS selectors or HTML tags, extracting text from HTML elements, clicking links and filling out forms, and parsing innerHTML. The article also touches on Goutte's limitations compared to more heavyweight web scraping libraries like Puppeteer or Selenium.