Question

When users edit their account, I want to display a confirmation page that shows their updated information with the fields that they changed in bold. Is there a mysql statement that allows you to select the fields that a user changes? If not, how exactly can I achieve this

Ex:

(editaccount.php)
first_name: bob
last_name:  builder
email: [e-mail]

When they change say their first name to “james”, the confirmation page
shows their first name in bold because they changed that but the other areas are still normal text.

first_name: <b>James</b>
last_name: builder
email: [e-mail]

Answer 1

You need to compare the fields against the old data yourself.

very basic example:

$old_user_data = <fetched from db>;
$new = $_POST;
$changed = array();

foreach ($old_user_data AS $field => $value) {
  if ($new[$field] != $value) {
     $changed[] = $field;
  }
}

print_r($changed); // array contains all fields that were changed