How can PHP developers ensure that date and time calculations are accurate and reliable in their applications?

To ensure accurate and reliable date and time calculations in PHP applications, developers should always use the appropriate date and time functions provided by PHP, such as strtotime(), date_create(), and date_format(). Additionally, developers should be mindful of timezones and ensure that all date and time values are correctly converted and compared based on the application's timezone settings. 

// Example code snippet to ensure accurate date and time calculations
$date1 = date_create('2022-01-01');
$date2 = date_create('2022-01-15');

// Calculate the difference in days between two dates
$interval = date_diff($date1, $date2);
echo $interval->format('%R%a days');

Keywords

DateTime timezones strtotime date_default_timezone_set DateTimeZone

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