How do I measure execution time of code

Measuring the execution time of code is crucial for performance optimization. By tracking how long your code takes to run, you can identify bottlenecks and improve efficiency.

Execution Time, Code Performance, PHP Timing Functions, Code Optimization

Here's an example of how you can measure the execution time of PHP code:


        <?php
        // Start time
        $start_time = microtime(true);
        
        // Code to be measured
        for ($i = 0; $i < 100000; $i++) {
            // Some operations
            $sum += $i;
        }
        
        // End time
        $end_time = microtime(true);
        
        // Calculate execution time
        $execution_time = $end_time - $start_time;
        
        echo "Execution time: " . $execution_time . " seconds";
        ?>