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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 |
|---|---|
| 88 | |
| 89 | if ('' != $pagestruct) { |
| 90 | $link = get_page_uri($id); |
| 91 | $link = str_replace('%pagename%', $link, $pagestruct); |
| 92 | $link = get_settings('home') . "/$link/"; |
| 93 | } else { |
| 94 | $link = get_settings('home') . "/?page_id=$id"; |
| 95 | } |
| 96 | |
| 97 | return apply_filters('page_link', $link, $id); |
| 98 | } |
| 99 | |
| 100 | function get_year_link($year) { |
| 101 | global $wp_rewrite; |
| 102 | if (!$year) $year = gmdate('Y', time()+(get_settings('gmt_offset') * 3600)); |
| 103 | $yearlink = $wp_rewrite->get_year_permastruct(); |
| 104 | if (!empty($yearlink)) { |
| 105 | $yearlink = str_replace('%year%', $year, $yearlink); |
| 106 | return apply_filters('year_link', get_settings('home') . trailingslashit($yearlink), $year); |