What is the best practice for sending user input to a different PHP script upon final submission?

When sending user input to a different PHP script upon final submission, it is best practice to sanitize and validate the input to prevent security vulnerabilities such as SQL injection or cross-site scripting. You can achieve this by using PHP functions like htmlspecialchars() and filter_var(). Once the input is sanitized and validated, you can pass it to the other PHP script using methods like POST or GET. 

// Sanitize and validate user input
$input = $_POST['user_input'];
$sanitized_input = htmlspecialchars($input);
$validated_input = filter_var($sanitized_input, FILTER_SANITIZE_STRING);

// Pass the input to a different PHP script using POST method
$ch = curl_init();
$data = array('user_input' => $validated_input);
curl_setopt($ch, CURLOPT_URL, 'http://example.com/other_script.php');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);

// Handle the response from the other PHP script
echo $response;

Keywords

form submission data validation PHP script POST method security measures

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