What considerations should be made when determining the date format and script structure for calculating date differences in PHP?

When calculating date differences in PHP, it's important to ensure that the date format used is consistent with the date string being passed. Additionally, the script structure should be designed to handle different date formats and timezones to accurately calculate the date differences. 

// Example code snippet for calculating date differences in PHP
$date1 = new DateTime('2022-01-01');
$date2 = new DateTime('2022-02-01');

$interval = $date1->diff($date2);
echo $interval->format('%R%a days');

Keywords

date format script structure calculating date differences PHP functions error handling

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