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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 |
|---|---|
| 3528 | |
| 3529 | /** |
| 3530 | * Filters the number of found posts for the query. |
| 3531 | * |
| 3532 | * @since 2.1.0 |
| 3533 | * |
| 3534 | * @param int $found_posts The number of posts found. |
| 3535 | * @param WP_Query $query The WP_Query instance (passed by reference). |
| 3536 | */ |
| 3537 | $this->found_posts = (int) apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) ); |
| 3538 | |
| 3539 | if ( ! empty( $limits ) ) { |
| 3540 | $this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] ); |
| 3541 | } |
| 3542 | } |
| 3543 | |
| 3544 | /** |
| 3545 | * Set up the next post and iterate current post index. |
| 3546 | * |