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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 |
|---|---|
| 220 | $permalink = preg_replace('#/+#', '/', "/$permalink/"); |
| 221 | $output = get_option('home') . $permalink; |
| 222 | } else { |
| 223 | if ( false !== strpos($feed, 'comments_') ) |
| 224 | $feed = str_replace('comments_', 'comments-', $feed); |
| 225 | |
| 226 | $output = get_option('home') . "/?feed={$feed}"; |
| 227 | } |
| 228 | |
| 229 | return apply_filters('feed_link', $output, $feed); |
| 230 | } |
| 231 | |
| 232 | function edit_post_link($link = 'Edit This', $before = '', $after = '') { |
| 233 | global $post; |
| 234 | |
| 235 | if ( is_attachment() ) |
| 236 | return; |
| 237 | |
| 238 | if( $post->post_type == 'page' ) { |