What best practices should be followed when setting the default timezone and locale in PHP for date and time functions?
When setting the default timezone and locale in PHP for date and time functions, it is important to choose the correct timezone and locale that align with the user's location or the application's requirements. This ensures that date and time functions display accurate information and adhere to the correct formatting conventions. To set the default timezone, you can use the `date_default_timezone_set()` function, and to set the default locale, you can use the `setlocale()` function.
// Set the default timezone to 'America/New_York'
date_default_timezone_set('America/New_York');
// Set the default locale to US English
setlocale(LC_TIME, 'en_US');