Example: 1


	<?php

	$username = $_POST['username'];
	$password = $_POST['password'];

	if($username && $password)
	{

	$connect = mysql_connect("localhost","root","") or die("Couldn't connect!");
	mysql_select_db("phplogin") or die("Couldn't find db");

	}


	?>


	
Example: 2


	<?php

	$username = $_POST['username'];
	$password = $_POST['password'];

	if($username && $password)
	{

	$connect = mysql_connect("localhost","root","admin") or die("Couldn't connect!");
	mysql_select_db("phplogin") or die("Couldn't find db");

	}
	else
 	  die("Please enter  username and Password!");

	?>



Example 3



	<html>

	<form action='login.php' method='POST'>
		<input type='text' name='username'><br>
		<input type='password' name='password'><br>
		<input type='submit' name='Log in'>
	</form>

	</html>




Example 4



	<html>

	<form action='login2.php' method='POST'>
		Username: <input type='text' name='username'><br>
		Password: <input type='password' name='password'><br>
		<input type='submit' name='Log in'>
	</form>

	</html>





