How does using variable variables in PHP compare to using arrays for dynamic variable creation and management?

Using variable variables in PHP allows for dynamic variable creation and management by allowing the variable name to be determined at runtime. This can be useful in situations where the variable names are not known beforehand or need to be generated dynamically. However, using arrays for dynamic variable creation and management is generally considered a better practice as it provides a more structured and organized way to store and access data.

// Using variable variables
$varName = 'dynamicVar';
$$varName = 'Hello, World!';
echo $dynamicVar; // Output: Hello, World!

// Using arrays
$dynamicVars = [];
$dynamicVars['dynamicVar'] = 'Hello, World!';
echo $dynamicVars['dynamicVar']; // Output: Hello, World!