What are some best practices for calculating and displaying time progress as a percentage in PHP?

When calculating and displaying time progress as a percentage in PHP, it's important to first determine the total duration of the process and the current progress made. Once you have these values, you can calculate the percentage completion by dividing the current progress by the total duration and multiplying by 100. Finally, you can display this percentage value to the user.

// Example calculation and display of time progress percentage
$totalDuration = 3600; // Total duration in seconds
$currentProgress = 1800; // Current progress in seconds

$percentage = ($currentProgress / $totalDuration) * 100;

echo "Time progress: " . round($percentage, 2) . "%";