What potential pitfalls should be considered when saving select field identification names in a MySQL database using PHP?

When saving select field identification names in a MySQL database using PHP, potential pitfalls to consider include SQL injection attacks and data validation. To prevent SQL injection, it is important to sanitize user input before inserting it into the database. Additionally, validating the input to ensure it matches the expected format can help prevent errors and unexpected behavior. 

// Sanitize and validate the select field identification name before saving to the database
$selectField = $_POST['select_field'];
// Sanitize the input to prevent SQL injection
$selectField = mysqli_real_escape_string($connection, $selectField);
// Validate the input to ensure it matches the expected format
if (!preg_match("/^[a-zA-Z0-9]+$/", $selectField)) {
    // Handle validation error
} else {
    // Insert the select field identification name into the database
    $query = "INSERT INTO table_name (select_field) VALUES ('$selectField')";
    mysqli_query($connection, $query);
}

Keywords

MySQL PHP select field database identification names

Related Questions