What are best practices for structuring PHP code to ensure form submissions work correctly?

When dealing with form submissions in PHP, it is important to structure your code in a way that ensures the form data is processed correctly. One best practice is to check if the form has been submitted before processing the data. This can be done by checking if the $_POST superglobal is not empty. By following this approach, you can avoid processing the form data when the form is not submitted. 

if (!empty($_POST)) {
    // Process form data here
}

Keywords

Validation Sanitization CSRF protection Error handling Form processing

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