What are the potential reasons for a PHP file not being displayed when called from an HTML form?

There are several potential reasons why a PHP file may not be displayed when called from an HTML form. This could be due to incorrect file paths, server misconfigurations, or syntax errors in the PHP code. To solve this issue, make sure that the file paths are correct, the server is properly configured to interpret PHP files, and the PHP code is free of errors.

<?php
// Ensure that the file path is correct
include 'path/to/your/php/file.php';

// Make sure the server is configured to interpret PHP files
// Check if PHP is installed and enabled on your server

// Verify that the PHP code in your file is error-free
// Check for syntax errors or any other issues in the PHP code
?>