How can the PHP code be modified to ensure that the form is only submitted when the user clicks the submit button?

To ensure that the form is only submitted when the user clicks the submit button, you can add a condition in the PHP code to check if the form has been submitted using the POST method. This can be done by checking if the submit button value is set in the $_POST superglobal array. If the submit button value is not set, the form submission should be ignored. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST" && isset($_POST["submit"])) {
    // Process form data here
    // Add your form processing logic here
}
?>

Keywords

PHP form submission button click event listener prevent default

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