How do I update user email from frontend input field?

You can diagnose error while updating user email. $user_data = wp_update_user( array( ‘ID’ => $user_id, ‘user_email’ => $email ) ); if ( is_wp_error( $user_data ) ) { // There was an error; possibly this user doesn’t exist. echo ‘Error.’; } else { // Success! echo ‘User profile updated.’; } Might it can help you.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)