What are the best practices for transferring input data from one PHP form to another?

When transferring input data from one PHP form to another, it is best practice to use PHP sessions to store the data temporarily. This ensures that the data is accessible across multiple pages without the need to pass it through URLs or hidden form fields, which can be insecure. By storing the input data in sessions, you can easily retrieve and display it on the subsequent form. 

// Start the session
session_start();

// Store input data from the first form in session variables
$_SESSION['name'] = $_POST['name'];
$_SESSION['email'] = $_POST['email'];

// Redirect to the second form
header('Location: second_form.php');
exit();
```
In the second form, you can retrieve the input data from the session variables like this:

```php
// Start the session
session_start();

// Retrieve input data from session variables
$name = $_SESSION['name'];
$email = $_SESSION['email'];

// Display the input data in the second form
echo "Name: $name <br>";
echo "Email: $email <br>";

Keywords

data transfer PHP form POST method session variables validation

Related Questions