What are some best practices for handling date and time calculations in PHP, especially when dealing with database values?

When handling date and time calculations in PHP, especially with database values, it's important to ensure that you are using the correct data types and formats to avoid unexpected results. It's recommended to store dates and times in the database using the DATETIME data type and to use PHP's DateTime class for calculations and formatting. 

// Example of retrieving a DATETIME value from the database and performing a calculation
$dbDate = '2022-01-15 12:30:00';
$datetime = new DateTime($dbDate);
$datetime->modify('+1 day');
$newDate = $datetime->format('Y-m-d H:i:s');
echo $newDate;

Keywords

DateTime strtotime date_default_timezone_set TIMESTAMP timezone_offset_get

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