What are the potential pitfalls of using PHP 4.3.10 or PHP 5.0.3 for beginners?

Using PHP 4.3.10 or PHP 5.0.3 for beginners can be problematic as these versions are outdated and may not support newer features and security updates. It is recommended to use a more recent version of PHP to ensure compatibility with modern web development practices and to protect against security vulnerabilities.

// Update your PHP version to a more recent one to ensure compatibility and security