View difference between Paste ID: VRWUBdm5 and nPaEUPbT

 <?php
 
 echo "My first PHP script!";
 echo "<br>";
 $x = 5+5;
 echo $x;
 echo "<br>";
 //--------------------------------------------------------
 echo gettype($x);  //return datatype
 echo "<br>";
 
 $color="red";
 echo "Color is ".$color."<br>";
 
 define("Name", "Lovely Professional University");  //constant
 echo Name;
 echo "<br>";
 
 printf("Regno is %d",11604722);
 echo "<br>";
 
 var_dump($x);  //return datatype and value
 echo "<br>";
 //-----------------------------------------------------------
 $cars = array("Audi","BMW","Toyota");   //array
 echo "First Car is ".$cars[0]."<br>";
 var_dump($cars);
 echo "<br>";
 //-----------------------------------------------------------------------
 echo strlen("Hello World!");  //returns the length of a string
 echo "<br>";
 echo str_word_count("Hello World!"); //counts the number of words in a string
 echo "<br>";
 echo strrev("Hello World!"); //reverses a string
 echo "<br>";
 echo strpos("Hello World!", "World"); //searches for a specific text within a string
 echo "<br>";
 echo str_replace("World", "India", "Hello World!"); //replaces some characters with some other characters in a string
 echo "<br>";
 
 $temp="Smoking is good for Health";
 echo str_replace("good", "bad", $temp,$count)."<br>";
 echo $count."<br>";
 //-------------------------------------------------------------------------------------------------------------------
 $a=10;
 $b=10;
 var_dump($a==$b); //Equal
 echo "<br>";
 var_dump($a===$b); //Identical
 echo "<br>";
 var_dump($a!=$b); //Not equal
 echo "<br>";
 var_dump($a<>$b); //Not equal
 echo "<br>";
 var_dump($a!==$b); //Not identical
 echo "<br>";
 var_dump($a>$b); //Greater than
 echo "<br>";
 var_dump($a<$b); //Less than
 echo "<br>";
 var_dump($a>=$b); //Greater than or equal to
 echo "<br>";
 var_dump($a<=$b); //Less than or equal to
 echo "<br>";
 //----------------------------------------------------------
 echo $a++."<br>";  //Pre-increment
 echo ++$a."<br>";  //Post-increment
 echo $b--."<br>";  //Pre-decrement
 echo --$b."<br>";  //Post-decrement
 
 $a=20;				// decision making
 if($a==2)
 {
 	echo "Hello World"."<br>";
 }
 elseif ($a=="20")
 {
 	echo "This is string value";
 }
 else
 {
 	echo "Hello Class";
 }
 //-------------------------------------------------------------
 $year=2016;
 if($year%4==0 && ($year%100!=0 || $year%400!=0))
 {
 	echo "<br>"."Leap Year";
 }
 else
 {
 	echo "Not a Leap Year";
 }
 //------------------------------------------------------------------
 $var=12345;
 if ($var%3==0)
 {
 	echo "<br>"."Divisible by 3";
 }
 if ($var%5==0)
 {
 	echo "<br>"."Divisible by 5";
 }
 if ($var%3==0 && $var%5==0)
 {
 	echo "<br>"."Divisible by 3 and 5";
 }
 else
 {
 	echo "<br>"."Not Divisible by 3 or 5";
 }
 
 //-------------------------------------------------------------------------------------
 echo "<br>".date("d");  //The day of the month (from 01 to 31)
 echo "<br>".date("D");	//A textual representation of a day (three letters)
 echo "<br>".date("H");	//24-hour format of an hour (00 to 23)
 echo "<br>".date("A");  //Uppercase AM or PM
 echo "<br>".date("L");	//Whether it's a leap year (1 if it is a leap year, 0 otherwise)
 echo "<br>".date("Y-m-d"); //Year date month
 
 //----------------------------------------------------------------------
 $a=10;
 $b=5;
 $c="/";
 switch($c)
 {
 	case "+": echo $a+$b;
 				break;
 
 	case "-": echo $a-$b;
 				break;
 }
 
 
 //--------------------------------------------------------------------
 $start = 1;
 $end = 10;
 
 $sum = 0;
 for ($i = $start; $i <= $end; $i++) {
     $sum += $i;
 }
 
 echo "<br>"."Sum from " . $start . " to " . $end . " = " . $sum;
 //---------------------------------------------------------------------
 $arr=array("Abc",10,20);
 echo "<br>";
 print_r($arr);
 echo "<br>".count($arr);
 echo "<br>".$arr[0]."<br>";
 var_dump($arr);
 for($i=0;$i<3;$i++)
 {
 	echo "<br>".$arr[$i];
 }
 foreach($arr as $x => $x_value) {
     echo "<br>"."Key=" . $x . ", Value=" . $x_value;
 }
 //------------------------------------
 $arr["name"]="DP";
 echo "<br>".$arr["name"];
 //--------------------------------------
 
 $numbers = array(4, 6, 2, 22, 11);
 $numbers[0]=1;
 $numbers[5]=9;
 echo $numbers[0];
 echo $numbers[5];
 
 sort($numbers);
 $arrlength = count($numbers);
 echo "<br>";
 for($x = 0; $x < $arrlength; $x++)
 {
     echo $numbers[$x];
     echo "<br>";
 }
 
 //----------------------------------------------------------------------------
 $cars = array 			//TWO DIMENSIONAL ARRAY
   (
   array("Volvo",22,18),
   array("BMW",15,13),
   array("Audi",5,2),
   array("Land Rover",17,15)
   );
 
 echo "<br>".$cars[0][0].": In stock: ".$cars[0][1].", sold: ".$cars[0][2];
 echo "<br>".$cars[1][0].": In stock: ".$cars[1][1].", sold: ".$cars[1][2];
 echo "<br>".$cars[2][0].": In stock: ".$cars[2][1].", sold: ".$cars[2][2];
 echo "<br>".$cars[3][0].": In stock: ".$cars[3][1].", sold: ".$cars[3][2];
 
 for($i=0;$i<3;$i++)
 {
 	echo "<br>";
 	for($j=0;$j<3;$j++)
 	{
 		echo $cars[$i][$j];
 	}
 }
 //---------------------------------------------------------------------------
 
 $marks = array(
             "mohammad" => array (
                "physics" => 35,
                "maths" => 30,
                "chemistry" => 39
             ),
 
             "qadir" => array (
                "physics" => 30,
                "maths" => 32,
                "chemistry" => 29
             ),
 
             "zara" => array (
                "physics" => 31,
                "maths" => 22,
                "chemistry" => 39
             )
          );
 
          /* Accessing multi-dimensional array values */
          echo "<br>"."Marks for mohammad in physics : " ;
          echo $marks['mohammad']['physics'] . "<br />";
 
          echo "Marks for qadir in maths : ";
          echo $marks['qadir']['maths'] . "<br />";
 
          echo "Marks for zara in chemistry : " ;
          echo $marks['zara']['chemistry'] . "<br />";
 //----------------------------------------------------------------------------------
 $cars = array("Volvo", "BMW", "Toyota");
 sort($cars);
 //--------------------------------------------------------------------------------
 $arr1=array("abc","def");
 $arr2=array("ghi","jkl");
 print_r(array_merge($arr1,$arr2));   //merging two arrays
 echo "<br>";
 $union=$arr1+$arr2;
 //var_dump($union);  //Union
 echo "<br>";
 print_r($union);
 
 echo "<br>";
 $my_array1 = array("size" => "big", 2,3 ); //Associative Array Union and Merge
 $my_array2 = array("a", "b", "size" => "medium",
                         "shape" => "circle", 4);
 print_r(array_merge($my_array1, $my_array2));
 echo "<br>";
 $union2=$my_array1+$my_array2;
 print_r($union2);
 
 //------------------------------------------------------------------------------
 //Array Slice
 echo "<br>";
 $a=array("red","green","blue","yellow","brown");
 print_r(array_slice($a,2,3));
 //------------------------------------------------------------------------------
 echo "<br>";
 $str = "Hello world. It's a beautiful day."; //Converting String to Array
 print_r (explode(" ",$str));
 //------------------------------------------------------------------------------
 echo "<br>";
 $arr = array('Hello','World!','Beautiful','Day!');//Converting Array to String
 echo implode(" & ",$arr);//here " " is delimiter
 //-----------------------------------------------------------------------------
 echo "<br>";
 $a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
 $result=array_flip($a1); //Swapping Array Keys and Value
 print_r($result);
 //----------------------------------------------------------------------------
 echo "<br>";
 $a=array("a"=>"red","b"=>"green","c"=>"red");
 print_r(array_unique($a));//Removind Duplicacy in array elements
 //echo join(" ,",$a);
 //------------------------------------------------------------------------------------------
 //WAPS to calculate and display 5 lowest and highest temperatures?
 echo "<br>";
 $temp=array(78,60,62,68,71,68,73,85,66,64,76,63,75,76,73,68,62,73,72,65,74,62,62,65,64,68,73,75,79,73);
 $temp1=array_unique($temp);
 sort($temp1);
 echo "List of 5 lowest temperatures are ";
 print_r(array_slice($temp1,0,5));
 $temp2=array_reverse($temp1);
 echo "<br>";
 echo "List of 5 highest temperatures are ";
 print_r(array_slice($temp2,0,5));
 echo "<br>";
 //----------------------------------------------------------------------------------------------------
 function fun($b) //Function
 {
     echo $b;
 }
 $a=10;
 fun($a);
 //--------------------------------------------------------------------------------------------------
 function fun1($a,$b)
 {
 	$c=$a+$b;
 	return $c;
 }
 echo "<br>Sum is ".fun1(5,10);
 //---------------------------------------
 echo "<br>";
 function fun2($dividend,$divisor)
 {
 	$quotient=$dividend/$divisor;
 	$array=array($dividend,$divisor,$quotient);
 	return $array;
 }
 print_r(fun2(10,20));
 //-------------------------------------------------------------------------
 function factorial($number) //Factorial of a number using recursion
 {
     if ($number < 2)
     {
         return 1;
     }
     return ($number * factorial($number-1));
 }
 echo "<br>Factorial is ".factorial(5);
 
 function factorial1($num)
 {
 	$fact=1;
 	for($i=$num;$i<0;$i--)
 	{
 		 $fact=$fact*$i;
 	}
 	return $fact;
 }
 echo factorial1(20);
 //------------------------------------------------------------------
 function fun3(&$a,&$b)
 {
 	$c=$a+$b;
 	return $c;
 }
 $x=10;
 $y=20;
 echo "<br>Sum is ".fun3($x,$y);
 //-----------------------------------
 function setHeight($minheight=50)
 {
     echo "<br>The height is : $minheight <br>";
 }
 setHeight(350);
 setHeight();
 setHeight(135);
 setHeight(80);
 //------------------------------------------------------------
 function sayHello()
 {
     echo "hello"."<br>";
 }
 $function_holder="sayhello";
 $function_holder();
 //--------------------------------------------------------------
 echo "<br>";
 function add(...$numbers)
 {
     $sum=0;
     foreach($numbers as $n)
     {
         $sum +=$n;
     }
     return $sum;
 }
 echo add(1,2,3,4);
 //--------------------------------------------------------
 echo "<br>";
 function even(...$numbers)
 {
     $sum=0;
     foreach($numbers as $n)
     {
         if($n%2==0)
         {
             $sum +=$n;
         }
     }
     return $sum;
 }
 echo even(1,2,3,4);
 //--------------------------------------------------------
 echo "<br>";    //Local,Global,Static Variables
 $a=20;
 $x=10;
 function ex()
 {
     $x=5;
     global $a;
     static $s=30;
     $a++;
     $s++;
     $x++;
 echo "<br>Global Variable ".$a;
 echo "<br>Local Variable ".$x;
 echo "<br>Static Variable ".$s."<br>";
 }
 ex();
 ex();
 ex();
 ex();
 echo $x;
 // echo $s will give error because scope of static variable is inside the block only.
 //--------------------------------------------------------------------------------------
 <?php
 print_r($_GET)
 if(isset($_GET['name'],$_GET['Rollo'],$_GET['Age'],$_GET['Address']))
 ?>
 -----------------------------------------------cookie-----------
 <?php
 $cookie_name="user";
 $cookie_value="Juju Spices";
 setcookie($cookie_name, $cookie_value, time() + (86400*30), "/");
 ?>
 
 <html>
 <body>
 	<?php
 		if(!isset($_COOKIE[$cookie_name]))
 		{
 			echo "Cookie named " . $cookie_name . " is not set!";
 		}
 		else
 		{
 			echo "Cookie " . $cookie_name . " is set!<br>";
 			echo "Value is: " . $_COOKIE[$cookie_name];
 		}
 		?>
 	</body>
 </html>
 ------------------------------------session-------------------
 <?php
 session_start();
 ?>
 <!DOCTYPE html>
 <html>
 <body>
 <?php
 $_SESSION["favcolor"] = "green";
 $_SESSION["favanimal"] = "cat";
 
 echo "Session variables are set.";
 ?>
 </body>
 </html>
 ----------------------------------------------------------------------------------
 <?php
 session_start();
 ?>
 <!DOCTYPE html>
 <html>
 <body>
 
 <?php
 // Echo session variables that were set on previous page
 echo "Favorite color is " . $_SESSION["favcolor"] . ".<br>";
 echo "Favorite animal is " . $_SESSION["favanimal"] . ".";
 ?>
 
 </body>
 </html>
 ------------------------------------------------------------------------------------------
 <?php
 session_start();
 ?>
 <!DOCTYPE html>
 <html>
 <body>
 
 <?php
 print_r($_SESSION);
 ?>
 
 </body>
 </html>
 ---------------------------------------Sanitization------------------------------
 <?php
 print_r(filter_list());
 if(isset($_POST['submit']));
 $a=	$_POST['name'];
 if(empty($a))
 {
 	echo "Name Not found";
 }
 else
 {
 	$a=filter_var($a,FILTER_SANITIZE_STRING);
 	echo "<br>";
 	echo $a."==is Sanitized.<br>";
 	if(!preg_match("/^[a-zA-Z]+$/",$a))
 	{
 		echo "Name Invalid<br>";
 	}
 	else
 	{
 		echo "Valid Named<br>";
 	}
 
 }
 $b=$_POST['Roll'];
 
 $c=$_POST['Age'];
 $d=$_POST['Address'];
 echo "Name is {$a},Roll  is {$b},Age is {$c},Address is {$d}";
 
 ?>
 
 <form action="get.php" method="POST">
 	<input type="text" name="name" placeholder="Name" required="name">
 	<input type="text" name="Roll" placeholder="roll">
 	<input type="text" name="Age" placeholder="age">
 	<input type="text" name="Address" placeholder="add">
 	<input type="Submit">
 </form>
 ----------------------------------------------------------------form validation---------------------
 <?php
 $a=$_GET["name"];
 if(empty($a))
 {
 	echo 'name not found';
 }
 else
 {
 	if(!preg_match("/^[a-zA-Z]*$/",$a))
 	{
 		echo "only letters are allowed<br>";
 	}
 	else
 	{
 		echo $a."<br>";
 	}
 }
 $b=$_GET["email"];
 if(empty($b))
 {
 	echo 'email not found<br>';
 }
 else
 {
 	if(!filter_var($b,FILTER_VALIDATE_EMAIL))
 	{
 		echo "invalid email<br>";
 	}
 	else
 	{
 		echo $b."<br>";
 	}
 }
 $c=$_GET["number"];
 if(empty($c))
 {
 	echo 'number not found<br>';
 }
 else
 {
 
 	if(!preg_match("/^[0-9]{10}+$/",$c))
 	{
 		echo "only numbers are allowed<br>";
 	}
 	else
 	{
 		echo $c;
 	}
 }
 ?>
 ------------------------------------------------------database query------------------------
 <?php
 $username ="root";
 $password = "";
 $hostname ="localhost";;
 
 //connetion to the database
 $dbhandle =mysql_connect($hostname, $username, $password)
 	or die("Unable to connect to mySql");
 echo"Connected to MySQL<br>";
 // select a database to work with
 $selected = mysql_select_db("examples",$dbhandle)
 or die("Could not select examples");
 
 //execute the SQL query and return records
 $result = mysql_query("SELECT id, model, year FROM cars");
 
 //fetch the data from the database
 while($row =mysql_fetch_array($result))
 {
 	echo "ID:".$row{'id'}."Name:".$row{'model'}."year:".$row{'year'}."<br>";
 }
 //close the connection
 mysql_close($dbhandle);
 ?>
 ---------------------------------------------------------------create database------------
 <?php
 $hostname = "localhost";
 $username = "root";
 $password = "";
 
 
 // Create connection
 $conn = new mysqli($hostname, $username, $password);
 // Check connection
 if ($conn->connect_error) {
     die("Connection failed: " . $conn->connect_error);
 }
 
 // Create database
 $sql = "CREATE DATABASE myDB1";
 if ($conn->query($sql)== TRUE) {
     echo "Database created successfully";
 } else {
     echo "Error creating database: " . $conn->error;
 }
 
 $conn->close();
 ?>
 -------------------------create table--------------------
  sql to create table
 $sql = "CREATE TABLE employee (
 emp_id INT(1) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
 emp_name VARCHAR(30) NOT NULL,
 emp_dept VARCHAR(30) NOT NULL,
 salary INT(6)
 )";
 -----------------------------------data insert
 <?php
 $hostname = "localhost";
 $username = "root";
 $password = "";
 $dbname = "mydb";
 
 // Create connection
 $conn = new mysqli($servername, $username, $password, $dbname);
 // Check connection
 if ($conn->connect_error) {
     die("Connection failed: " . $conn->connect_error);
 }
 
 $sql = "INSERT INTO employee (emp_id,emp_name,emp_dept,salary)
 VALUES (1,'a','CSE',40000);";
 $sql = "INSERT INTO employee (emp_id,emp_name,emp_dept,salary)
 VALUES (2,'b','IT',30000);";
 $sql = "INSERT INTO employee (emp_id,emp_name,emp_dept,salary)
 VALUES (3,'c','EEE',45000);";
 $sql = "INSERT INTO employee (emp_id,emp_name,emp_dept,salary)
 VALUES (4,'d','ECE',50000);";
 $sql = "INSERT INTO employee (emp_id,emp_name,emp_dept,salary)
 VALUES (5,'e','CSE',55000);";
 
 
 
 if ($conn->multi_query($sql) === TRUE) {
     echo "New records created successfully";
 } else {
     echo "Error: " . $sql . "<br>" . $conn->error;
 }
 
 $conn->close();
 ?>
 ----------------------------------------------------post method-----------
 
 <?php
 
 
 if(isset($_POST["Submit"]))
 {
 	extract($_POST);
 
 $a=	$_POST["name"];
 $b=$_POST['roll'];
 $c=$_POST['class'];
 if(empty($name)){
 echo "value is NOT there";
 }
 else
 {
 	echo $a;
 }
 }
 
 ?>
 
 <form  action="post.php" method="post">
 	name<input type="text" name="name" placeholder="">
 	rollo<input type="text" name="roll" placeholder="">
 	class<input type="text" name="class" placeholder="">
 
 	<input type="Submit">
 </form>
 
 ------------------------------------db.php-----------
 <?php
 $g=mysqli_connect('localhost','root','','hd1');
 if($g==false)
 {
 	echo "connection is not done";
 }
 else
 {
 	echo "connection is done";
 }
 
 if(isset($_POST["submit"]))
 {
 	extract($_POST);
 
 $a=$_POST["first_name"];
 $b=$_POST['last_name'];
 $c=$_POST['reg_no'];
 $d=$_POST['password'];
 $sql="INSERT INTO mytable(first_name,last_name,reg_no,password) VALUES ('$a', '$b', '$c','$d')";
 
 if(mysqli_query($g,$sql))
 {
 	echo "data insert";
 }
 else{
 	echo "data not insert";
 }
 }
 
 
 ?>
 <form  action="db.php" method="post"><br>
 	first_name<input type="text" name="first_name" placeholder=""><br>
 	last_name<input type="text" name="last_name" placeholder=""><br>
 	reg_no<input type="text" name="reg_no" placeholder=""><br>
 	password<input type="password" name="password" placeholder=""><br>
 	<input type="submit" name="submit">
 
 ---------------------------------------------------------login.php-----------
 <?php
 $connect=mysqli_connect("localhost","root","" ,"hd1");
 
 if($connect->connect_error)
 {
    die("connection failed:" . $connect->connect_error);
 }
 echo "Connnection success";
 
 
 if(isset($_POST['login'])){
 	$first_name=$_POST['first_name'];
 	$password=$_POST['password'];
 	$query="select * from mytable where first_name='$first_name' and password='$password'";
 	$result=mysqli_query($connect,$query);
 	if(mysqli_num_rows($result)>0)
 	{
 		echo "Login ";
 
    }
 	else
     {
         echo "<script>alert('error login')</script>";
     }
     }
 
  ?>
 
  <form method="POST" action="login.php">
     <input type="text" name="first_name" placeholder="first_name" required/>
     <input type="password" name="password" placeholder="password" required/>
     <button name="login" type="submit">Login</button>
 </form>
 -----------------------------------------------email sent----------
 <?php
 include('C:/xamppp/htdocs/phpclass/PHPMailerAutoload.php');
 include('C:/xamppp/htdocs/phpclass/class.smtp.php');
 $mail= new PHPMailer();
 $mail->isSMTP();
 $mail->SMTPAuth= true;
 $mail->SMTPSecure='t1s'; //transport layer security protocol
 $mail->Host = 'smtp.gmail.com';
 $mail->Port = 587;
 $mail->Username= 'sharmashikha0698@gmail.com';
 
 $mail->Password = '';
 $mail->Subject = 'hello';
 $mail->Body = 'mail';
 $mail->addAddress('sharmashikha0698@gmail.com');
 $mail->Send();
 if(!$mail->Send())
 {
 	echo "message not sent";
 }
 else
 {
 	echo "message  sent";
 
 }
 ?>
 -------------------------------------overriding---------
 <?php
 // The parent class has hello method that returns "beep".
 class Car {
   public function hello()
   {
     echo "beep";
   }
 }
 
 //The child class has hello method that returns "Halllo"
 class SportsCar extends Car {
   public function hello()
   {
     echo "Hallo";
 	parent::hello();
   }
 }
 
 //Create a new object
 $sportsCar1=new SportsCar();
 
 //Get the result of the hello method
 echo $sportsCar1 -> hello();
 ?>
 -----------------------------session login------
 <?php
 session_start();
 $message="";
 if(count($_POST)>0) {
  $con = mysqli_connect('127.0.0.1:3306','root','','admin') or die('Unable To connect');
 $result = mysqli_query($con,"SELECT * FROM login_user WHERE name='" . $_POST["name"] . "' and password = '". $_POST["password"]."'");
 $row  = mysqli_fetch_array($result);
 if(is_array($row)) {
 $_SESSION["id"] = $row[id];
 $_SESSION["name"] = $row[name];
 } else {
 $message = "Invalid Username or Password!";
 }
 }
 if(isset($_SESSION["id"])) {
 header("Location:index.php");
 }
 ?>
 <html>
 <head>
 <title>User Login</title>
 </head>
 <body>
 <form name="frmUser" method="post" action="" align="center">
 <div class="message"><?php if($message!="") { echo $message; } ?></div>
 <h3 align="center">Enter Login Details</h3>
  Username:<br>
  <input type="text" name="name">
  <br>
  Password:<br>
 <input type="password" name="password">
 <br><br>
 <input type="submit" name="submit" value="Submit">
 <input type="reset">
 </form>
 </body>
 </html>
 -----------------------------------session index
 <?php
 session_start();
 ?>
 <html>
 <head>
 <title>User Login</title>
 </head>
 <body>
 
 <?php
 if($_SESSION["name"]) {
 ?>
 Welcome <?php echo $_SESSION["name"]; ?>. Click here to <a href="logout.php" tite="Logout">Logout.
 <?php
 }else echo "<h1>Please login first .</h1>";
 ?>
 </body>
 </html>
 ---------------------------session logout-----------
 <?php
 session_start();
 unset($_SESSION["id"]);
 unset($_SESSION["name"]);
 header("Location:login.php");
 ?>
 ---------------------------------------------------cookie login
 <?php
 session_start();
 if(isset($_COOKIE['username']) && isset($_COOKIE['password'])) {
 	if($_COOKIE['username']=='abc' && $_COOKIE['password']=='123') {
 		$_SESSION['username'] = $_COOKIE['username'];
 		header('location:welcome.php');
 	}
 	else
 		$error = "Account's Invalid";
 }
 
 if(isset($_POST['login'])){
 	if($_POST['username']=='abc' && $_POST['password']=='123'){
 		$_SESSION['username'] = $_POST['username'];
 		if($_POST['remember'] != NULL) {
 			setcookie('username', $_POST['username'], time() + (86400 * 30), "/");
 			setcookie('password', $_POST['password'], time() + (86400 * 30), "/");
 		}
 		header('location:welcome.php');
 	}
 	else {
 		$error = "Account's Invalid";
 	}
 }
 ?>
 <form method="post">
 	<fieldset>
 		<legend>Login</legend>
 		<?php echo isset($error) ? $error : ''; ?>
 		<table cellpadding="2" cellspacing="2">
 			<tr>
 				<td>Username</td>
 				<td><input type="text" name="username"></td>
 			</tr>
 			<tr>
 				<td>Password</td>
 				<td><input type="password" name="password"></td>
 			</tr>
 			<tr>
 				<td>Remember Me</td>
 				<td><input type="checkbox" name="remember"></td>
 			</tr>
 			<tr>
 				<td>&nbsp;</td>
 				<td><input type="submit" name="login" value="Login"></td>
 			</tr>
 		</table>
 	</fieldset>
 </form>
 -----------------------------------------------------------------Welcome Page
 <?php
 session_start();
 if(isset($_GET['action']) && $_GET['action']=='logout'){
 	// Remoce session
 	unset($_SESSION['username']);
 	// Remoce cookie
 	setcookie('username', '', 0, "/");
 	setcookie('password', '', 0, "/");
 	header('location:index.php');
 }
 echo 'Welcome '.$_SESSION['username'];
 ?>
 <br>
 <a href="welcome.php?action=logout">Logout</a>