How can input validation be integrated into the data saving process in PHP models?

Input validation can be integrated into the data saving process in PHP models by validating the input data before saving it to the database. This can be achieved by using PHP functions like filter_var() or regular expressions to ensure that the data meets the required format and criteria. By validating the input data before saving it, you can prevent SQL injection attacks, data corruption, and other security vulnerabilities. 

// Validate input data before saving to the database
$name = $_POST['name'];
$email = $_POST['email'];

// Validate name
if (!empty($name) && strlen($name) <= 50) {
    $name = filter_var($name, FILTER_SANITIZE_STRING);
} else {
    // Handle validation error
}

// Validate email
if (!empty($email) && filter_var($email, FILTER_VALIDATE_EMAIL)) {
    $email = filter_var($email, FILTER_SANITIZE_EMAIL);
} else {
    // Handle validation error
}

// Save validated data to the database
// $sql = "INSERT INTO users (name, email) VALUES ('$name', '$email')";
// $result = mysqli_query($conn, $sql);

Keywords

input validation data saving process PHP models integration error types

Related Questions