PHP for beginners 2

PHP Sessions example:

Tutorial5_session.php

<?php

session_start();

$_SESSION['Name']='mark';

$_SESSION['Age']=15;

$_SESSION['Weight']=50;

echo "Done";

?>

Tutorial5.php

<?php

session_start();

$name=$_SESSION['Name'];

$age=$_SESSION['Age'];

$weight=$_SESSION['Weight'];

echo $name.'<br>';

echo $age.'<br>';

echo $weight.'<br>';

?>

Unset session:

<?php

session_start();

// session_destroy();

unset($_SESSION['Name']);

?>

PHP Cookie example:

Tutorial6_cookie.php

<?php

// COOKIE EXAMPLE

//          setcookie(name, value, expire, path, domain);

$time = time();

setcookie('student', 'Mark', $time+10);

echo 'Cookie is created '.$time;

?>

Tutorial6.php

<?php

$student =$_COOKIE['student'];

// 10 second after cookie is destroyed

echo $student;

?>

Getting Data from MySQL Database using PHP

Tutorial7.php

<?php

$mysql_host='localhost';

$mysql_user='root';

$mysql_password='root';

if(!@mysql_connect($mysql_host, $mysql_user, $mysql_password)){

             die('Cannot Connect to database');

 } else {

                         if(@mysql_select_db('student_phpexample')){

                        //                      echo 'Connection success';

             } else

                         die('Cannot Connect to database');

 }

?>

Tutorial7_getdata.php

<?php

include 'tutorial7.php';

$query="SELECT * FROM `user_info`";

if($is_query_run=mysql_query($query)){

            // echo "query executed";

            while($query_execute=mysql_fetch_assoc($is_query_run)){

                        echo '<table border ="1" style="width:300px"><tr>';

                        echo '<td>'.$query_execute['Name'].'</td>';

                        echo '<td>'.$query_execute['Surname'].'</td>';

                        echo '<td>'.$query_execute['Age'].'</td>';

                        echo '</tr>';

            }

} else {

            echo "query not executed";

}

?>

PHP Md5 Encryption example:

<?php

$password="pass";

echo md5($password);

if(isset($_POST['password']) && !empty($_POST['password'])){

            $check_password = $_POST['password'];

            if(md5($check_password)==md5($password))

            {

                        echo "Password correct";

            } else {

                        echo "Password is not correct";

            }

}

?>

<form action="tutorial8.php" method="post">

<input type ="text" name="password">

<br>

<input type="submit">

</form>