What potential pitfalls should be considered when using mktime() in PHP code?

When using mktime() in PHP code, one potential pitfall to consider is that mktime() generates a timestamp based on the local timezone settings of the server. This can lead to unexpected results when working with dates and times across different timezones. To avoid this issue, it's recommended to set the timezone explicitly using date_default_timezone_set() before calling mktime(). 

// Set the timezone to UTC before using mktime()
date_default_timezone_set('UTC');

// Create a timestamp using mktime()
$timestamp = mktime($hour, $minute, $second, $month, $day, $year);

// Use the timestamp as needed in your code

Keywords

mktime PHP date time timezone

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