What best practices can be followed to accurately calculate the number of weeks in a year using PHP?

To accurately calculate the number of weeks in a year using PHP, you can utilize the `date()` function to determine the number of weeks in a given year. By setting the date to the last day of the year and then using the `W` format character in the `date()` function, you can get the week number of that day, which corresponds to the total number of weeks in the year.

$year = date('Y');
$lastDayOfYear = date('Y-m-t', strtotime($year . '-12-01'));
$weekNumber = date('W', strtotime($lastDayOfYear));

echo "Number of weeks in $year: $weekNumber";