How can the date format 'd-m-Y' impact the accuracy of date calculations in PHP compared to 'Y-m-d'?

Using the date format 'd-m-Y' can impact the accuracy of date calculations in PHP because PHP may interpret dates in unexpected ways. To ensure accurate date calculations, it is recommended to use the 'Y-m-d' format which follows the standard year-month-day order. This format is less prone to errors and ensures consistent date handling in PHP. 

$dateString = '31-12-2022';
$dateObj = DateTime::createFromFormat('d-m-Y', $dateString);
$fixedDateString = $dateObj->format('Y-m-d');
echo $fixedDateString;

Keywords

date format d-m-Y Y-m-d accuracy date calculations

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