How can PHP variables and filesystem functions be utilized to store and retrieve data for a benchmark script?

To store and retrieve data for a benchmark script using PHP variables and filesystem functions, you can save the benchmark results to a file using file_put_contents() and retrieve them using file_get_contents(). This way, you can easily access the benchmark data without the need to recalculate it each time the script runs.

// Save benchmark results to a file
$benchmarkResults = "12345";
file_put_contents('benchmark_results.txt', $benchmarkResults);

// Retrieve benchmark results from the file
$storedResults = file_get_contents('benchmark_results.txt');
echo "Benchmark results: " . $storedResults;