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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 |
---|---|
1763 | if ( $update ) { |
1764 | /** |
1765 | * Fires immediately after an existing user is updated. |
1766 | * |
1767 | * @since 2.0.0 |
1768 | * |
1769 | * @param int $user_id User ID. |
1770 | * @param WP_User $old_user_data Object containing user's data prior to update. |
1771 | */ |
1772 | do_action( 'profile_update', $user_id, $old_user_data ); |
1773 | } else { |
1774 | /** |
1775 | * Fires immediately after a new user is registered. |
1776 | * |
1777 | * @since 1.5.0 |
1778 | * |
1779 | * @param int $user_id User ID. |
1780 | */ |
1781 | do_action( 'user_register', $user_id ); |