How can the strftime function be effectively used in conjunction with mktime in PHP to format date and time values?
To format date and time values using the strftime function in PHP, you can first create a Unix timestamp using mktime, and then pass this timestamp to strftime along with the desired format string. This allows you to customize the output of the date and time values according to your requirements.
// Create a Unix timestamp using mktime
$timestamp = mktime(0, 0, 0, 12, 31, 2021);
// Format the date and time using strftime
$formatted_date = strftime("%A, %B %d, %Y %H:%M:%S", $timestamp);
echo $formatted_date;