How can one convert dates from a CSV file in German format to the English format required by a MySQL database using PHP?

To convert dates from German format to English format for a MySQL database using PHP, you can use the DateTime class to parse the German date format and then format it in the desired English format. This can be achieved by specifying the format of the German date using the createFromFormat() method and then using the format() method to output the date in the desired English format.

// German date format example: 31.12.2021
$germanDate = '31.12.2021';

// Parse the German date and format it in English format
$date = DateTime::createFromFormat('d.m.Y', $germanDate);
$englishDate = $date->format('Y-m-d');

echo $englishDate; // Output: 2021-12-31