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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 74 | |
| 75 | <h2><?php _e('Blogroll Management'); ?></h2> |
| 76 | <p><?php _e('Here you <a href="link-add.php">add links</a> to sites that you visit often and share them on your blog. When you have a list of links in your sidebar to other blogs, it’s called a “blogroll.”'); ?></p> |
| 77 | <form id="cats" method="get" action=""> |
| 78 | <p><?php |
| 79 | $categories = get_categories("hide_empty=1&type=link"); |
| 80 | $select_cat = "<select name=\"cat_id\">\n"; |
| 81 | $select_cat .= '<option value="all"' . (($cat_id == 'all') ? " selected='selected'" : '') . '>' . __('All') . "</option>\n"; |
| 82 | foreach ((array) $categories as $cat) |
| 83 | $select_cat .= '<option value="' . $cat->cat_ID . '"' . (($cat->cat_ID == $cat_id) ? " selected='selected'" : '') . '>' . wp_specialchars(apply_filters('link_category', $cat->cat_name)) . "</option>\n"; |
| 84 | $select_cat .= "</select>\n"; |
| 85 | |
| 86 | $select_order = "<select name=\"order_by\">\n"; |
| 87 | $select_order .= '<option value="order_id"' . (($order_by == 'order_id') ? " selected='selected'" : '') . '>' . __('Link ID') . "</option>\n"; |
| 88 | $select_order .= '<option value="order_name"' . (($order_by == 'order_name') ? " selected='selected'" : '') . '>' . __('Name') . "</option>\n"; |
| 89 | $select_order .= '<option value="order_url"' . (($order_by == 'order_url') ? " selected='selected'" : '') . '>' . __('Address') . "</option>\n"; |
| 90 | $select_order .= '<option value="order_rating"' . (($order_by == 'order_rating') ? " selected='selected'" : '') . '>' . __('Rating') . "</option>\n"; |
| 91 | $select_order .= "</select>\n"; |
| 92 | |
| Line | Code |
| 154 | break; |
| 155 | case 'url': |
| 156 | echo "<td><a href='$link->link_url' title='".sprintf(__('Visit %s'), $link->link_name)."'>$short_url</a></td>"; |
| 157 | break; |
| 158 | case 'categories': |
| 159 | ?><td><?php |
| 160 | $cat_names = array(); |
| 161 | foreach ($link->link_category as $category) { |
| 162 | $cat_name = get_the_category_by_ID($category); |
| 163 | $cat_name = wp_specialchars(apply_filters('link_category', $cat_name)); |
| 164 | if ( $cat_id != $category ) |
| 165 | $cat_name = "<a href='link-manager.php?cat_id=$category'>$cat_name</a>"; |
| 166 | $cat_names[] = $cat_name; |
| 167 | } |
| 168 | echo implode(', ', $cat_names); |
| 169 | ?> </td><?php |
| 170 | break; |
| 171 | case 'rel': |
| 172 | ?><td><?php echo $link->link_rel; ?></td><?php |