1)Write
a PHP Script create login form and validate it (Use database and Sticky form
concept)
<html>
<head>
</head>
<body>
<form action="<?php echo $_SERVER['PHP_SELF']?>"
method=post>
<input type=text name=txtuname value="<?php
if(isset($_POST['txtuname']))echo $_POST['txtuname'];?>"
></br>
<input type=password name=txtupass value="<?php
if(isset($_POST['txtupass']))echo $_POST['txtupass'];?>"
></br>
<input type=submit value="Login" name=submit>
<?php
if(isset($_POST['submit']))
$nm=$_POST['txtuname'];
$ps=$_POST['txtupass'];
$con=@mysql_connect("localhost","root","");
mysql_elect_db("archana",$con);
$result=mysql_query("select * from login where uname='$nm' and
upass='$ps'");
$flag=0;
while($row=mysql_fetch_array($result))
{
$flag++;
}
if($flag==1)
echo "Login validated";
else
echo "username or password invalid";
?>
</body>
</html>
2) Write a PHP Script to create a super
class Vehicle having members Company and price. Derive 2 different
classes LightMotorVehicle (members – mileage) and HeavyMotorVehicle (members –
capacity-in-tons). Define 5 Object of each subclass and display details in table
format
<?php
class vehicle
{
public $company,$price;
public function __construct($a,$b)
{
$this->company=$a;
$this->price=$b;
}
}
class Lightmotorvehicle extends vehicle
{
public $milege;
public function __construct($a,$b,$c)
{
$this->company=$a;
$this->price=$b;
$this->milege=$c;
}
public function display()
{
echo "<table border=1
width=300><tr><td>".$this->company."</td><td>".$this->price."</td><td>".$this->milege."</td></tr>";
}
}
class Heavymotorvehicle extends vehicle
{
public $capacity;
public function __construct($a,$b,$c)
{
$this->company=$a;
$this->price=$b;
$this->capacity=$c;
}
public function display()
{
echo "<table border=1 width=300>";
echo
"<tr><td>".$this->company."</td><td>".$this->price."</td><td>".$this->capacity;
echo "</td></tr></table>";
}
}
$ob1=new Lightmotorvehicle("Maruti",200000,25);
$ob1->display();
$ob2=new Lightmotorvehicle("Toyota",500000,20);
$ob2->display();
$ob3=new Lightmotorvehicle("skoda",400000,15);
$ob3->display();
$ob4=new Heavymotorvehicle("Tata Truck",1220000,25);
$ob4->display();
$ob5=new Heavymotorvehicle("Bajaj",200000,25);
$ob5->display();
$ob6=new Heavymotorvehicle("mahindra",900000,25);
$ob6->display();
?>
