What are some limitations or restrictions in PHP when working with form data in a survey software environment?

One limitation when working with form data in a survey software environment is the potential for users to submit malicious code or invalid data. To prevent this, you can use PHP functions like `htmlspecialchars()` to sanitize user input and prevent cross-site scripting attacks. 

// Sanitize user input using htmlspecialchars()
$name = htmlspecialchars($_POST['name']);
$email = htmlspecialchars($_POST['email']);
$age = htmlspecialchars($_POST['age']);
// Process sanitized data further as needed

Keywords

PHP form data survey software limitations restrictions

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