What are the potential pitfalls of using outdated PHP versions, and how can they be updated to prevent compatibility issues?

Using outdated PHP versions can pose security risks, as older versions may have vulnerabilities that can be exploited by hackers. To prevent compatibility issues, it is important to regularly update PHP to the latest stable version. This can be done by checking for updates on the official PHP website and following the instructions for upgrading.

// Check for updates and upgrade PHP version