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["John qin" <feelexit126 AT hotmail.com>]

need help to customize profile page.

I want to add icon for all bloggers.  plan to add that option on profile 
page.  but I have hard time to understand how profile-updated.php page 
works.

in profile.php, we make changes and go to  profile-updated.php to make 
acutal change.

there are 2 functions in profile-updated.php page.

update_user_option( $current_user->id, 'rich_editing', 
$_POST['rich_editing'], true );
do_action('personal_options_update');

update_user_option has 4 parameters, first one is number, second one is a 
string, third and forth are boolean value.  it didnt get any values from 
form in profile page, I got so confused here,  I dont know how this function 
changes profile without form value .

do_action --  still have no clue wht does it do.

please help me out if you know how this page works.

thank you so much

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