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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 |
|---|---|
| 3185 | * @global object $comment Current comment. |
| 3186 | * @uses do_action() Calls 'comment_loop_start' hook when first comment is processed. |
| 3187 | */ |
| 3188 | function the_comment() { |
| 3189 | global $comment; |
| 3190 | |
| 3191 | $comment = $this->next_comment(); |
| 3192 | |
| 3193 | if ( $this->current_comment == 0 ) { |
| 3194 | do_action('comment_loop_start'); |
| 3195 | } |
| 3196 | } |
| 3197 | |
| 3198 | /** |
| 3199 | * Whether there are more comments available. |
| 3200 | * |
| 3201 | * Automatically rewinds comments when finished. |
| 3202 | * |
| 3203 | * @since 2.2.0 |