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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 |
|---|---|
| 178 | <label class="screen-reader-text" for="comment-search-input"><?php _e( 'Search Comments' ); ?>:</label> |
| 179 | <input type="text" id="comment-search-input" name="s" value="<?php _admin_search_query(); ?>" /> |
| 180 | <input type="submit" value="<?php esc_attr_e( 'Search Comments' ); ?>" class="button" /> |
| 181 | </p> |
| 182 | |
| 183 | <?php |
| 184 | $comments_per_page = get_user_option('edit_comments_per_page'); |
| 185 | if ( empty($comments_per_page) ) |
| 186 | $comments_per_page = 20; |
| 187 | $comments_per_page = apply_filters('comments_per_page', $comments_per_page, $comment_status); |
| 188 | |
| 189 | if ( isset( $_GET['apage'] ) ) |
| 190 | $page = abs( (int) $_GET['apage'] ); |
| 191 | else |
| 192 | $page = 1; |
| 193 | |
| 194 | $start = $offset = ( $page - 1 ) * $comments_per_page; |
| 195 | |
| 196 | list($_comments, $total) = _wp_get_comment_list( $comment_status, $search_dirty, $start, $comments_per_page + 5, $post_id, $comment_type ); // Grab a few extra |