What are some common pitfalls to avoid when incorporating SQL queries with user input from radio buttons and checkboxes in PHP?

When incorporating SQL queries with user input from radio buttons and checkboxes in PHP, it is important to avoid SQL injection vulnerabilities by properly sanitizing and validating the user input. Additionally, it is crucial to use prepared statements to prevent malicious SQL injection attacks. Always validate and sanitize user input before using it in SQL queries to ensure the security of your application. 

// Example of using prepared statements to incorporate user input from radio buttons and checkboxes in SQL queries

// Assume $conn is the database connection object

// Get user input from radio button or checkbox
$selectedOption = $_POST['option'];

// Prepare SQL statement using a prepared statement
$stmt = $conn->prepare("SELECT * FROM table_name WHERE column_name = ?");
$stmt->bind_param("s", $selectedOption);

// Execute the query
$stmt->execute();

// Fetch results
$result = $stmt->get_result();

// Loop through results
while ($row = $result->fetch_assoc()) {
    // Do something with the data
}

// Close the statement and connection
$stmt->close();
$conn->close();

Keywords

SQL injection prepared statements mysqli_real_escape_string input validation XSS vulnerabilities

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