What resources or documentation can PHP developers refer to for better understanding date_diff functionality?

PHP developers can refer to the official PHP documentation for the date_diff function to better understand its functionality. Additionally, online tutorials, forums, and community websites can provide valuable insights and examples on how to effectively use date_diff for calculating date intervals in PHP. 

$date1 = new DateTime('2022-01-01');
$date2 = new DateTime('2022-01-10');
$interval = date_diff($date1, $date2);
echo $interval->format('%R%a days');

Keywords

PHP date_diff documentation resources understanding

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