<pre>
	<?php 
	$date = "2021-12-25";
	$today = date("Y-m-d");
	$today_time = strtotime($today);
	$compare_date = strtotime($date);
	if($compare_date > $today_time){
		echo 'Future date';
	}else{
		echo 'Past Date';
	}
	?>
</pre>