Mohammad Sadegh Mirnasab RekcahA

## Comprehensive age.php
<html><head><meta charset="UTF-8"></head>
<body>
<?php
if(isset($_POST["btn"])) {
    $y = $_POST["year"];
    $m = $_POST["Month"];
    $d = $_POST["Day"];
    if (empty($y)) {
        echo "<font color='#ff2828' size='5'>Please enter your year of birth</font>" . "<br>";
    }
	<html><head><meta charset="UTF-8"></head>
	<body>
	<?php
	if(isset($_POST["btn"])) {
	$y = $_POST["year"];
	$m = $_POST["Month"];
	$d = $_POST["Day"];
	if (empty($y)) {
	echo "<font color='#ff2828' size='5'>Please enter your year of birth</font>" . "<br>";
	}