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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 |
|---|---|
| 1673 | $description = ''; |
| 1674 | |
| 1675 | /** |
| 1676 | * Filter a user's description before the user is created or updated. |
| 1677 | * |
| 1678 | * @since 2.0.3 |
| 1679 | * |
| 1680 | * @param string $description The user's description. |
| 1681 | */ |
| 1682 | $description = apply_filters( 'pre_user_description', $description ); |
| 1683 | |
| 1684 | if ( empty($rich_editing) ) |
| 1685 | $rich_editing = 'true'; |
| 1686 | |
| 1687 | if ( empty($comment_shortcuts) ) |
| 1688 | $comment_shortcuts = 'false'; |
| 1689 | |
| 1690 | if ( empty($admin_color) ) |
| 1691 | $admin_color = 'fresh'; |