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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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671 | * |
672 | * Use of this filter can result in unpredictable behavior, and is not recommended. |
673 | * |
674 | * @since 2.8.0 |
675 | * |
676 | * @param string[] $selects An array of fields to select for the terms query. |
677 | * @param array $args An array of term query arguments. |
678 | * @param string[] $taxonomies An array of taxonomy names. |
679 | */ |
680 | $fields = implode( ', ', apply_filters( 'get_terms_fields', $selects, $args, $taxonomies ) ); |
681 |
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682 | $join .= " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id"; |
683 |
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684 | if ( ! empty( $this->query_vars['object_ids'] ) ) { |
685 | $join .= " INNER JOIN {$wpdb->term_relationships} AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id"; |
686 | } |
687 |
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688 | $where = implode( ' AND ', $this->sql_clauses['where'] ); |
689 |
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