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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 |
---|---|
3626 | if ( ! empty( $limits ) ) { |
3627 | /** |
3628 | * Filter the query to run for retrieving the found posts. |
3629 | * |
3630 | * @since 2.1.0 |
3631 | * |
3632 | * @param string $found_posts The query to run to find the found posts. |
3633 | * @param WP_Query &$this The WP_Query instance (passed by reference). |
3634 | */ |
3635 | $this->found_posts = $wpdb->get_var( apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) ) ); |
3636 | } else { |
3637 | $this->found_posts = count( $this->posts ); |
3638 | } |
3639 |
|
3640 | /** |
3641 | * Filter the number of found posts for the query. |
3642 | * |
3643 | * @since 2.1.0 |
3644 | * |