What is the recommended format for storing dates in a database for easy conversion to UnixTime in PHP?

Storing dates in a database in the format of "YYYY-MM-DD HH:MM:SS" is recommended for easy conversion to UnixTime in PHP. This format is easily convertible to UnixTime using the strtotime() function in PHP.

// Assuming $date contains the date in "YYYY-MM-DD HH:MM:SS" format
$unixTime = strtotime($date);
echo $unixTime; // Output UnixTime value