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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 |
|---|---|
| 1398 | * |
| 1399 | * Use of this filter can result in unpredictable behavior, and is not recommended. |
| 1400 | * |
| 1401 | * @since 2.8.0 |
| 1402 | * |
| 1403 | * @param array $selects An array of fields to select for the terms query. |
| 1404 | * @param array $args An array of term query arguments. |
| 1405 | * @param array $taxonomies An array of taxonomies. |
| 1406 | */ |
| 1407 | $fields = implode( ', ', apply_filters( 'get_terms_fields', $selects, $args, $taxonomies ) ); |
| 1408 | |
| 1409 | $join .= " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id"; |
| 1410 | |
| 1411 | $pieces = array( 'fields', 'join', 'where', 'orderby', 'order', 'limits' ); |
| 1412 | |
| 1413 | /** |
| 1414 | * Filter the terms query SQL clauses. |
| 1415 | * |
| 1416 | * @since 3.1.0 |