How can the unset() function in PHP be utilized to free up memory space during script execution?

When working with large data sets or objects in PHP, memory usage can become a concern. The unset() function can be used to free up memory space by removing references to variables or elements of an array that are no longer needed during script execution. 

// Example of utilizing unset() to free up memory space
$largeDataSet = range(1, 1000000); // Create a large array

// Process data...

unset($largeDataSet); // Free up memory by unsetting the large array

Keywords

unset function PHP memory space script execution

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