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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 |
|---|---|
| 856 | /** |
| 857 | * Filters the ORDERBY clause of the terms query. |
| 858 | * |
| 859 | * @since 2.8.0 |
| 860 | * |
| 861 | * @param string $orderby `ORDERBY` clause of the terms query. |
| 862 | * @param array $args An array of terms query arguments. |
| 863 | * @param array $taxonomies An array of taxonomies. |
| 864 | */ |
| 865 | $orderby = apply_filters( 'get_terms_orderby', $orderby, $this->query_vars, $this->query_vars['taxonomy'] ); |
| 866 | |
| 867 | // Run after the 'get_terms_orderby' filter for backward compatibility. |
| 868 | if ( $maybe_orderby_meta ) { |
| 869 | $maybe_orderby_meta = $this->parse_orderby_meta( $_orderby ); |
| 870 | if ( $maybe_orderby_meta ) { |
| 871 | $orderby = $maybe_orderby_meta; |
| 872 | } |
| 873 | } |
| 874 | |