What are some recommended PHP functions for working with dates and times?

When working with dates and times in PHP, there are several built-in functions that can help manipulate, format, and compare dates. Some recommended functions include `date()`, `strtotime()`, `date_create()`, `date_format()`, and `date_diff()`. These functions can be used to format dates, convert strings to Unix timestamps, create date objects, format date objects, and calculate the difference between two dates. 

// Example of using date() function to format current date
$currentDate = date('Y-m-d H:i:s');
echo $currentDate;

Keywords

DateTime strtotime date_format date_diff date_create

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