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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 |
---|---|
3040 | if ( ! empty( $limits ) ) { |
3041 | /** |
3042 | * Filters the query to run for retrieving the found posts. |
3043 | * |
3044 | * @since 2.1.0 |
3045 | * |
3046 | * @param string $found_posts The query to run to find the found posts. |
3047 | * @param WP_Query &$this The WP_Query instance (passed by reference). |
3048 | */ |
3049 | $this->found_posts = $wpdb->get_var( apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) ) ); |
3050 | } else { |
3051 | $this->found_posts = count( $this->posts ); |
3052 | } |
3053 |
|
3054 | /** |
3055 | * Filters the number of found posts for the query. |
3056 | * |
3057 | * @since 2.1.0 |
3058 | * |