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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 |
|---|---|
| 934 | /** |
| 935 | * Filters the ORDERBY clause of the terms query. |
| 936 | * |
| 937 | * @since 2.8.0 |
| 938 | * |
| 939 | * @param string $orderby `ORDERBY` clause of the terms query. |
| 940 | * @param array $args An array of term query arguments. |
| 941 | * @param string[] $taxonomies An array of taxonomy names. |
| 942 | */ |
| 943 | $orderby = apply_filters( 'get_terms_orderby', $orderby, $this->query_vars, $this->query_vars['taxonomy'] ); |
| 944 | |
| 945 | // Run after the 'get_terms_orderby' filter for backward compatibility. |
| 946 | if ( $maybe_orderby_meta ) { |
| 947 | $maybe_orderby_meta = $this->parse_orderby_meta( $_orderby ); |
| 948 | if ( $maybe_orderby_meta ) { |
| 949 | $orderby = $maybe_orderby_meta; |
| 950 | } |
| 951 | } |
| 952 | |