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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 |
|---|---|
| 72 | <label for="close_comments_for_old_posts"> |
| 73 | <input name="close_comments_for_old_posts" type="checkbox" id="close_comments_for_old_posts" value="1" <?php checked('1', get_option('close_comments_for_old_posts')); ?> /> |
| 74 | <?php printf( __('Automatically close comments on articles older than %s days'), '</label><label for="close_comments_days_old"><input name="close_comments_days_old" type="number" min="0" step="1" id="close_comments_days_old" value="' . esc_attr(get_option('close_comments_days_old')) . '" class="small-text" />'); ?> |
| 75 | </label> |
| 76 | <br /> |
| 77 | <label for="thread_comments"> |
| 78 | <input name="thread_comments" type="checkbox" id="thread_comments" value="1" <?php checked('1', get_option('thread_comments')); ?> /> |
| 79 | <?php |
| 80 | |
| 81 | $maxdeep = (int) apply_filters( 'thread_comments_depth_max', 10 ); |
| 82 | |
| 83 | $thread_comments_depth = '</label><label for="thread_comments_depth"><select name="thread_comments_depth" id="thread_comments_depth">'; |
| 84 | for ( $i = 2; $i <= $maxdeep; $i++ ) { |
| 85 | $thread_comments_depth .= "<option value='" . esc_attr($i) . "'"; |
| 86 | if ( get_option('thread_comments_depth') == $i ) $thread_comments_depth .= " selected='selected'"; |
| 87 | $thread_comments_depth .= ">$i</option>"; |
| 88 | } |
| 89 | $thread_comments_depth .= '</select>'; |
| 90 | |