How can the code provided be optimized for better performance and accuracy in determining the current week?

The issue with the current code is that it relies on the `date` function to determine the current week, which may not always be accurate due to differences in server settings or time zones. To optimize for better performance and accuracy, we can use the `DateTime` class in PHP to calculate the current week based on the ISO-8601 standard, which defines the first week of the year as the week containing the first Thursday. 

// Calculate the current week based on ISO-8601 standard
$now = new DateTime();
$week = $now->format("W");

echo "Current week: " . $week;

Keywords

PHP optimization performance accuracy current week

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