How can PHP developers ensure that form data is properly captured and displayed on subsequent pages?

To ensure that form data is properly captured and displayed on subsequent pages, PHP developers can use sessions to store the form data and then retrieve it on the subsequent pages. By storing the form data in sessions, developers can easily access it across multiple pages without losing the data. 

<?php
session_start();

// Capture form data
if($_SERVER["REQUEST_METHOD"] == "POST") {
    $_SESSION['form_data'] = $_POST;
    header("Location: next_page.php");
    exit();
}

// Display form data on subsequent page
if(isset($_SESSION['form_data'])) {
    $form_data = $_SESSION['form_data'];
    // Display form data here
}
?>

Keywords

PHP form data validation session variables data persistence

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