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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 2751 | |
| 2752 | /** |
| 2753 | * Filters the SELECT clause of the query. |
| 2754 | * |
| 2755 | * @since 2.1.0 |
| 2756 | * |
| 2757 | * @param string $fields The SELECT clause of the query. |
| 2758 | * @param WP_Query $this The WP_Query instance (passed by reference). |
| 2759 | */ |
| 2760 | $fields = apply_filters_ref_array( 'posts_fields', array( $fields, &$this ) ); |
| 2761 | |
| 2762 | /** |
| 2763 | * Filters all query clauses at once, for convenience. |
| 2764 | * |
| 2765 | * Covers the WHERE, GROUP BY, JOIN, ORDER BY, DISTINCT, |
| 2766 | * fields (SELECT), and LIMITS clauses. |
| 2767 | * |
| 2768 | * @since 3.1.0 |
| 2769 | * |