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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 |
|---|---|
| 363 | if ( !$post_id ) |
| 364 | $post_id = (int) $id; |
| 365 | |
| 366 | $post = get_post($post_id); |
| 367 | if ( ! isset($post->comment_count) ) |
| 368 | $count = 0; |
| 369 | else |
| 370 | $count = $post->comment_count; |
| 371 | |
| 372 | return apply_filters('get_comments_number', $count); |
| 373 | } |
| 374 | |
| 375 | /** |
| 376 | * comments_number() - Display the language string for the number of comments the current post has |
| 377 | * |
| 378 | * @since 0.71 |
| 379 | * @uses $id |
| 380 | * @uses apply_filters() Calls the 'comments_number' hook on the output and number of comments respectively. |
| 381 | * |