What potential pitfalls should be considered when working with dynamic arrays in PHP?

One potential pitfall when working with dynamic arrays in PHP is not properly handling memory management, which can lead to memory leaks or performance issues. To avoid this, it's important to unset the array when it's no longer needed to free up memory.

// Example of unsetting a dynamic array to free up memory
$dynamicArray = [1, 2, 3, 4, 5];

// Perform operations with dynamicArray

unset($dynamicArray);