What are the best practices for accurately rounding months when converting days to months in PHP?

When converting days to months in PHP, it's important to accurately round the months to avoid discrepancies. One common approach is to divide the total number of days by the average number of days in a month (30.44) to get an approximate number of months. Then, round this value to the nearest whole number to get the final result.

$days = 100;
$months = round($days / 30.44);
echo "Approximate number of months: " . $months;