What are the potential pitfalls of mixing GET and POST methods in PHP programming?

Mixing GET and POST methods in PHP programming can lead to confusion and potential security vulnerabilities. It is important to use POST for sensitive data that should not be visible in the URL, while GET should be used for non-sensitive data retrieval. To avoid mixing these methods, always use POST for forms that submit data and GET for retrieving data. 

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Process form data using POST method
} else {
    // Retrieve data using GET method
}

Keywords

GET POST HTTP methods security vulnerabilities form handling

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