What are the essential components needed in a PHP page to receive and process data from an HTML form?

To receive and process data from an HTML form in a PHP page, you need to ensure that the form in your HTML page has a method attribute set to "post" or "get" and an action attribute specifying the PHP file that will process the form data. In the PHP file, you need to use the $_POST or $_GET superglobals to retrieve the form data based on the method used. You can then process the data as needed, such as validating inputs, sanitizing data, and performing any necessary actions based on the form submission. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Retrieve form data using $_POST superglobal
    $name = $_POST['name'];
    $email = $_POST['email'];
    
    // Process the form data (e.g., validate inputs, sanitize data, perform actions)
    // For example, you can echo the submitted data back to the user
    echo "Hello, $name! Your email is $email.";
}
?>

Keywords

PHP HTML form data processing form submission server-side validation

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