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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 |
|---|---|
| 197 | $permalink = preg_replace('#/+#', '/', "/$permalink/"); |
| 198 | $output = get_settings('home') . $permalink; |
| 199 | } else { |
| 200 | if ( false !== strpos($feed, 'comments_') ) |
| 201 | $feed = str_replace('comments_', 'comments-', $feed); |
| 202 | |
| 203 | $output = get_settings('home') . "/?feed={$feed}"; |
| 204 | } |
| 205 | |
| 206 | return apply_filters('feed_link', $output, $feed); |
| 207 | } |
| 208 | |
| 209 | function edit_post_link($link = 'Edit This', $before = '', $after = '') { |
| 210 | global $post; |
| 211 | |
| 212 | if ( ! current_user_can('edit_post', $post->ID) ) |
| 213 | return; |
| 214 | |
| 215 | if ( is_attachment() ) |