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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 |
|---|---|
| 2456 | * @global object $comment Current comment. |
| 2457 | * @uses do_action() Calls 'comment_loop_start' hook when first comment is processed. |
| 2458 | */ |
| 2459 | function the_comment() { |
| 2460 | global $comment; |
| 2461 | |
| 2462 | $comment = $this->next_comment(); |
| 2463 | |
| 2464 | if ($this->current_comment == 0) { |
| 2465 | do_action('comment_loop_start'); |
| 2466 | } |
| 2467 | } |
| 2468 | |
| 2469 | /** |
| 2470 | * Whether there are more comments available. |
| 2471 | * |
| 2472 | * Automatically rewinds comments when finished. |
| 2473 | * |
| 2474 | * @since 2.2.0 |