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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 |
---|---|
2610 | * Filters the WHERE clause of the query. |
2611 | * |
2612 | * For use by caching plugins. |
2613 | * |
2614 | * @since 2.5.0 |
2615 | * |
2616 | * @param string $where The WHERE clause of the query. |
2617 | * @param WP_Query $this The WP_Query instance (passed by reference). |
2618 | */ |
2619 | $where = apply_filters_ref_array( 'posts_where_request', array( $where, &$this ) ); |
2620 |
|
2621 | /** |
2622 | * Filters the GROUP BY clause of the query. |
2623 | * |
2624 | * For use by caching plugins. |
2625 | * |
2626 | * @since 2.5.0 |
2627 | * |
2628 | * @param string $groupby The GROUP BY clause of the query. |