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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
190 | if ( !$update ) { |
191 | $user = new WP_User($user_id); |
192 | $user->set_role(get_option('default_role')); |
193 | } |
194 |
|
195 | wp_cache_delete($user_id, 'users'); |
196 | wp_cache_delete($user_login, 'userlogins'); |
197 |
|
198 | if ( $update ) |
199 | do_action('profile_update', $user_id); |
200 | else |
201 | do_action('user_register', $user_id); |
202 |
|
203 | return $user_id; |
204 | } |
205 |
|
206 | /** |
207 | * wp_update_user() - Update an user in the database |
208 | * |