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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 |
|---|---|
| 44 | ?> |
| 45 | |
| 46 | <?php |
| 47 | break; |
| 48 | |
| 49 | case 'planetnews' : |
| 50 | $rss = @fetch_rss(apply_filters( 'dashboard_secondary_feed', 'http://planet.wordpress.org/feed/' )); |
| 51 | if ( isset($rss->items) && 0 != count($rss->items) ) { |
| 52 | ?> |
| 53 | <h3><?php echo apply_filters( 'dashboard_secondary_title', __('Other WordPress News') ); ?></h3> |
| 54 | <ul> |
| 55 | <?php |
| 56 | $rss->items = array_slice($rss->items, 0, 20); |
| 57 | foreach ($rss->items as $item ) { |
| 58 | $title = wp_specialchars($item['title']); |
| 59 | $author = preg_replace( '|(.+?):.+|s', '$1', $item['title'] ); |
| 60 | $post = preg_replace( '|.+?:(.+)|s', '$1', $item['title'] ); |
| 61 | ?> |
| 62 | <li><a href='<?php echo wp_filter_kses($item['link']); ?>'><span class="post"><?php echo $post; ?></span><span class="hidden"> - </span><cite><?php echo $author; ?></cite></a></li> |