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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 |
---|---|
207 | if ( !$update ) { |
208 | $user = new WP_User($user_id); |
209 | $user->set_role(get_option('default_role')); |
210 | } |
211 |
|
212 | wp_cache_delete($user_id, 'users'); |
213 | wp_cache_delete($user_login, 'userlogins'); |
214 |
|
215 | if ( $update ) |
216 | do_action('profile_update', $user_id, $old_user_data); |
217 | else |
218 | do_action('user_register', $user_id); |
219 |
|
220 | return $user_id; |
221 | } |
222 |
|
223 | /** |
224 | * Update an user in the database. |
225 | * |