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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 |
|---|---|
| 3056 | function set_found_posts( $q, $limits ) { |
| 3057 | global $wpdb; |
| 3058 | |
| 3059 | // Bail if posts is an empty array. Continue if posts is an empty string, |
| 3060 | // null, or false to accommodate caching plugins that fill posts later. |
| 3061 | if ( $q['no_found_rows'] || ( is_array( $this->posts ) && ! $this->posts ) ) |
| 3062 | return; |
| 3063 | |
| 3064 | if ( ! empty( $limits ) ) |
| 3065 | $this->found_posts = $wpdb->get_var( apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) ) ); |
| 3066 | else |
| 3067 | $this->found_posts = count( $this->posts ); |
| 3068 | |
| 3069 | $this->found_posts = apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) ); |
| 3070 | |
| 3071 | if ( ! empty( $limits ) ) |
| 3072 | $this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] ); |
| 3073 | } |
| 3074 | |