$date = DateTime::createFromFormat('Y-m-d H:i:s', '2022-01-01 12:00:00'); echo $date->format('Y-m-d H:i:s');
$date = DateTime::createFromFormat('j/n/Y', '1/1/2022'); echo $date->format('Y-m-d');In this example, the createFromFormat() method is used to create a DateTime object from a string in the format 'j/n/Y'. The string '1/1/2022' represents the date January 1st, 2022. The format() method is then used to format the date in the format 'Y-m-d'. Package Library: The DateTime createFromString() method is part of the PHP DateTime class, which is a built-in class in PHP. Therefore, the package library for this method is the PHP core library.