How can beginners in PHP improve their code quality and avoid common pitfalls by seeking help from experienced developers or online resources?

Beginners in PHP can improve their code quality and avoid common pitfalls by seeking help from experienced developers or online resources. They can ask for code reviews, participate in forums or online communities, and read documentation and tutorials to learn best practices. By learning from others' experiences and feedback, beginners can enhance their coding skills and write more efficient and maintainable code.

// Example of seeking help from experienced developers
// Define a function to calculate the sum of two numbers
function calculateSum($num1, $num2) {
    return $num1 + $num2;
}

// Call the function with two numbers and output the result
echo calculateSum(5, 10);