How can a beginner in PHP ensure that their timer script runs smoothly and efficiently?

To ensure that a timer script runs smoothly and efficiently, a beginner in PHP can use the built-in functions like `microtime()` to accurately measure time intervals and optimize the code by minimizing unnecessary operations within the timer loop. 

$start_time = microtime(true);

// Timer loop or code to be measured

$end_time = microtime(true);
$execution_time = $end_time - $start_time;
echo "Script executed in: " . $execution_time . " seconds";

Keywords

PHP timer script efficiency optimization performance

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