What best practices should be followed when sending form data with PHP?

When sending form data with PHP, it is important to sanitize and validate the input to prevent security vulnerabilities such as SQL injection and cross-site scripting attacks. One common best practice is to use PHP's filter_input() function to sanitize input data before processing it further. 

// Sanitize and validate form data using filter_input()

$name = filter_input(INPUT_POST, 'name', FILTER_SANITIZE_STRING);
$email = filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL);

// Process sanitized data further

Keywords

POST method htmlspecialchars validation CSRF protection error handling

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