How can PHP sessions be utilized to maintain form data across different sections of a webpage?

To maintain form data across different sections of a webpage, PHP sessions can be utilized to store the form data temporarily and retrieve it as needed. By storing the form data in session variables, the data can persist across different pages or sections of a webpage until the session is destroyed. 

<?php
session_start();

// Check if form data has been submitted
if(isset($_POST['submit'])){
    // Store form data in session variables
    $_SESSION['form_data'] = $_POST;
}

// Retrieve form data from session variables
if(isset($_SESSION['form_data'])){
    $form_data = $_SESSION['form_data'];
    // Display form data in the respective form fields
    // Example: <input type="text" name="name" value="<?php echo $form_data['name']; ?>">
}
?>

Keywords

PHP sessions form data webpage maintain sections

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