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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 |
|---|---|
| 696 | /** |
| 697 | * Filters the terms query SQL clauses. |
| 698 | * |
| 699 | * @since 3.1.0 |
| 700 | * |
| 701 | * @param string[] $pieces Array of query SQL clauses. |
| 702 | * @param string[] $taxonomies An array of taxonomy names. |
| 703 | * @param array $args An array of term query arguments. |
| 704 | */ |
| 705 | $clauses = apply_filters( 'terms_clauses', compact( 'fields', 'join', 'where', 'distinct', 'orderby', 'order', 'limits' ), $taxonomies, $args ); |
| 706 | |
| 707 | $fields = isset( $clauses['fields'] ) ? $clauses['fields'] : ''; |
| 708 | $join = isset( $clauses['join'] ) ? $clauses['join'] : ''; |
| 709 | $where = isset( $clauses['where'] ) ? $clauses['where'] : ''; |
| 710 | $distinct = isset( $clauses['distinct'] ) ? $clauses['distinct'] : ''; |
| 711 | $orderby = isset( $clauses['orderby'] ) ? $clauses['orderby'] : ''; |
| 712 | $order = isset( $clauses['order'] ) ? $clauses['order'] : ''; |
| 713 | $limits = isset( $clauses['limits'] ) ? $clauses['limits'] : ''; |
| 714 | |