Login

<!DOCTYPE html>
<html>
<head>
	<title></title>
	<style >
		.error {
			color: #ff0000;
		}
	</style>
</head>
<body>
<?php

//define the variable and assign their value to null
$name = $password = "";
$nameErr = $passwordErr = $Error = "";
$userName = "Sudipto";
$userPass = "123456";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
	if (empty($_POST["name"])) {
		$nameErr = "Name is required";
	}
	else {
		$name = text_input($_POST["name"]);

	}

	if (empty($_POST["password"])) {
		$passwordErr = "Password will not be blank";
	}
	else {
		$password = text_input($_POST["password"]);

	}

	if (($name==$userName) && ($password == $userPass)) {
		$Error = "Welcome you are loggedin";


	}
	else {
		$Error = "username and password are not matched";
	}

}


function text_input ($data) {
	$data = trim($data);
	$data = stripcslashes($data);
	$data = htmlspecialchars($data);

	return $data;
}

?>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
	Name:<input type="text" name="name" value="">
	<span class="error">* <?php echo $nameErr;?></span>
	<br><br>
	Password:<input type="text" name="password" value="">
	<span class="error">* <?php echo $passwordErr;?></span>
	<br><br>
	<input type="submit" name="submit" value="Submit">
	<br><br>

	<span class="error">*<?php echo $Error;?></span>

</form>

<?php
echo "<h2>Login Details</h2>";
echo "<br>";
echo "UserName:".$name."<br>";
echo "Password:".$password."<br>";
?>

</body>
</html>