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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 |
|---|---|
| 482 | $url = user_trailingslashit($url, 'single_feed'); |
| 483 | } else { |
| 484 | $type = get_post_field('post_type', $post_id); |
| 485 | if ( 'page' == $type ) |
| 486 | $url = home_url("?feed=$feed&page_id=$post_id"); |
| 487 | else |
| 488 | $url = home_url("?feed=$feed&p=$post_id"); |
| 489 | } |
| 490 | |
| 491 | return apply_filters('post_comments_feed_link', $url); |
| 492 | } |
| 493 | |
| 494 | /** |
| 495 | * Display the comment feed link for a post. |
| 496 | * |
| 497 | * Prints out the comment feed link for a post. Link text is placed in the |
| 498 | * anchor. If no link text is specified, default text is used. If no post ID is |
| 499 | * specified, the current post is used. |
| 500 | * |