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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 |
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629 | * |
630 | * Use of this filter can result in unpredictable behavior, and is not recommended. |
631 | * |
632 | * @since 2.8.0 |
633 | * |
634 | * @param string[] $selects An array of fields to select for the terms query. |
635 | * @param array $args An array of term query arguments. |
636 | * @param string[] $taxonomies An array of taxonomy names. |
637 | */ |
638 | $fields = implode( ', ', apply_filters( 'get_terms_fields', $selects, $args, $taxonomies ) ); |
639 |
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640 | $join .= " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id"; |
641 |
|
642 | if ( ! empty( $this->query_vars['object_ids'] ) ) { |
643 | $join .= " INNER JOIN {$wpdb->term_relationships} AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id"; |
644 | } |
645 |
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646 | $where = implode( ' AND ', $this->sql_clauses['where'] ); |
647 |
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