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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 |
|---|---|
| 538 | $where .= " AND post_date >= '$end_date'"; |
| 539 | } |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | // Apply post-paging filters on where and join. Only plugins that |
| 544 | // manipulate paging queries should use these hooks. |
| 545 | $where = apply_filters('posts_where_paged', $where); |
| 546 | $where .= " GROUP BY $wpdb->posts.ID"; |
| 547 | $join = apply_filters('posts_join_paged', $join); |
| 548 | $orderby = "post_" . $q['orderby']; |
| 549 | $orderby = apply_filters('posts_orderby', $orderby); |
| 550 | $request = " SELECT $distinct * FROM $wpdb->posts $join WHERE 1=1".$where." ORDER BY " . $orderby . " $limits"; |
| 551 | |
| 552 | $this->posts = $wpdb->get_results($request); |
| 553 | |
| 554 | // Check post status to determine if post should be displayed. |
| 555 | if ($this->is_single) { |
| 556 | if ('publish' != $this->posts[0]->post_status) { |