What are the potential pitfalls of using CopyPaste in PHP code and how can they be avoided?

Potential pitfalls of using CopyPaste in PHP code include duplicating code that may lead to maintenance issues, inconsistency in behavior, and increased risk of introducing bugs. To avoid these pitfalls, it is recommended to refactor duplicated code into reusable functions or classes that can be called whenever needed.

// Before refactoring
function processUserData($data) {
    // Code block A
    // ...
}

function processProductData($data) {
    // Code block A
    // ...
}

// After refactoring
function processData($data) {
    // Code block A
    // ...
}

function processUserData($data) {
    processData($data);
}

function processProductData($data) {
    processData($data);
}