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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 |
|---|---|
| 46 | } else { |
| 47 | $link = $before . '<a href="' . get_settings('siteurl') . '/wp-admin/">' . __('Site Admin') . '</a>' . $after; |
| 48 | } |
| 49 | |
| 50 | echo apply_filters('register', $link); |
| 51 | } |
| 52 | |
| 53 | |
| 54 | function wp_meta() { |
| 55 | do_action('wp_meta'); |
| 56 | } |
| 57 | |
| 58 | |
| 59 | function bloginfo($show='') { |
| 60 | $info = get_bloginfo($show); |
| 61 | if (!strstr($show, 'url') && //don't filter URLs |
| 62 | !strstr($show, 'directory') && |
| 63 | !strstr($show, 'home')) { |
| 64 | $info = apply_filters('bloginfo', $info, $show); |