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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 |
|---|---|
| 1707 | |
| 1708 | /** |
| 1709 | * Filter the terms query arguments. |
| 1710 | * |
| 1711 | * @since 3.1.0 |
| 1712 | * |
| 1713 | * @param array $args An array of get_term() arguments. |
| 1714 | * @param array $taxonomies An array of taxonomies. |
| 1715 | */ |
| 1716 | $args = apply_filters( 'get_terms_args', $args, $taxonomies ); |
| 1717 | |
| 1718 | // Avoid the query if the queried parent/child_of term has no descendants. |
| 1719 | $child_of = $args['child_of']; |
| 1720 | $parent = $args['parent']; |
| 1721 | |
| 1722 | if ( $child_of ) { |
| 1723 | $_parent = $child_of; |
| 1724 | } elseif ( $parent ) { |
| 1725 | $_parent = $parent; |