Practical - 9 IWD

 

Aim: Information passing using Hidden variables (POST method)

Page–1: Send data using hidden variable

File Name: page1.php

<!DOCTYPE html>
<html>
<head>
    <title>Page 1</title>
</head>
<body>

<h2>Enter Employee Name</h2>

<form method="post" action="page2.php">
    Employee Name: <input type="text" name="empname"><br><br>

    <input type="hidden" name="company" value="ABC Technologies">

    <input type="submit" value="Send">
</form>

</body>
</html>

Page–2: Receive hidden variable data

File Name: page2.php

<!DOCTYPE html>
<html>
<head>
    <title>Page 2</title>
</head>
<body>

<h2>Received Information</h2>

<?php
echo "Employee Name: " . $_POST['empname'] . "<br>";
echo "Company Name: " . $_POST['company'];
?>

</body>
</html>

Explanation (for exam):

  • Hidden variable stores data invisibly

  • Data is passed using POST method

  • Accessed using $_POST[] array

Key Viva Questions

  1. What is a hidden variable?
    → A hidden variable stores data in a form but is not visible to the user.

  2. Which method is used here?
    → POST method

  3. How do you access form data in PHP?
    → Using $_POST array

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