Are there any best practices for handling form input values when updating database records in PHP?

When updating database records in PHP, it is important to properly handle form input values to prevent SQL injection attacks and ensure data integrity. One best practice is to use prepared statements with parameterized queries to securely pass user input to the database. This helps to sanitize the input and protect against malicious code injection. 

// Assuming $conn is the database connection object

// Get form input values
$id = $_POST['id'];
$name = $_POST['name'];
$email = $_POST['email'];

// Prepare SQL statement with parameterized query
$stmt = $conn->prepare("UPDATE users SET name = ?, email = ? WHERE id = ?");
$stmt->bind_param("ssi", $name, $email, $id);

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

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

Keywords

SQL injection prepared statements PDO data validation sanitization

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