In the context of the provided code snippets, how can the issue of memory not being freed after execution be resolved effectively?

The issue of memory not being freed after execution can be resolved effectively by explicitly calling the `unset()` function on variables that are no longer needed. This function removes the reference to the variable, allowing the garbage collector to free up memory allocated to that variable. 

// Code snippet with memory not being freed issue
$data = "Some data that takes up memory";
// other operations
$data = null; // Setting variable to null does not immediately free up memory

// Fixed code snippet with explicit memory freeing
$data = "Some data that takes up memory";
// other operations
unset($data); // Explicitly freeing up memory allocated to $data

Keywords

memory management garbage collection unset memory leak PHP

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