How can PHP be used to calculate the time difference between a start date and the current date?

To calculate the time difference between a start date and the current date in PHP, you can use the DateTime class to create DateTime objects for both dates and then calculate the difference using the diff() method. This method returns a DateInterval object which can then be used to extract the time difference in various formats such as days, hours, minutes, etc. 

$start_date = new DateTime('2022-01-01');
$current_date = new DateTime();
$interval = $start_date->diff($current_date);
echo $interval->format('%a days, %h hours, %i minutes');

Keywords

PHP date time difference DateTime calculation

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