What are some common pitfalls to avoid when trying to save form data from an HTML table using PHP?

One common pitfall to avoid when saving form data from an HTML table using PHP is not properly handling the form submission. Make sure to check if the form has been submitted before processing the data. Another pitfall is not properly sanitizing the input data to prevent SQL injection attacks. Always use prepared statements or parameterized queries to interact with the database. 

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Sanitize input data
    $data = filter_input_array(INPUT_POST, [
        'column1' => FILTER_SANITIZE_STRING,
        'column2' => FILTER_SANITIZE_STRING,
        // Add more columns as needed
    ]);
    
    // Use prepared statements to insert data into the database
    $stmt = $pdo->prepare("INSERT INTO table_name (column1, column2) VALUES (:column1, :column2)");
    $stmt->execute($data);
}

Keywords

HTML table form data PHP validation SQL injection

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