What are some best practices for saving form data in a SQL database using PHP?

When saving form data in a SQL database using PHP, it is important to sanitize the input to prevent SQL injection attacks. Additionally, you should use prepared statements to securely insert the data into the database. Lastly, consider validating the form data before saving it to ensure data integrity. 

// Assuming $conn is your database connection
$stmt = $conn->prepare("INSERT INTO table_name (column1, column2) VALUES (?, ?)");
$stmt->bind_param("ss", $value1, $value2);

// Sanitize and set values from form data
$value1 = filter_var($_POST['input1'], FILTER_SANITIZE_STRING);
$value2 = filter_var($_POST['input2'], FILTER_SANITIZE_STRING);

$stmt->execute();
$stmt->close();
$conn->close();

Keywords

SQL database PHP form data saving best practices

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