Using PHP 7.1.3 on a production server is . It has known unpatched vulnerabilities (e.g., CVE-2019-11043, a remote code execution in PHP-FPM). However, for local development or an isolated intranet, XAMPP can be safe if you follow these rules:
Introduced notable features like nullable types and the void return type, making it significantly faster than the 5.x series, but it lacks the JIT compiler and substantial speed boosts found in current PHP versions Ease of Use: xampp php 7.1.3
Follow the terminal prompts. Default location: /opt/lampp . Using PHP 7