Should unset() be used in the footer to clear memory in PHP?

Using unset() in the footer to clear memory in PHP is not necessary and may not have a significant impact on memory usage. PHP automatically manages memory by freeing up memory when variables are no longer needed. It is more important to focus on optimizing your code and avoiding memory leaks rather than explicitly calling unset().

// No need to explicitly call unset() in the footer
// PHP automatically manages memory
// Focus on optimizing code and avoiding memory leaks