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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 |
|---|---|
| 1486 | |
| 1487 | /** |
| 1488 | * Filters the comment notification email text. |
| 1489 | * |
| 1490 | * @since 1.5.2 |
| 1491 | * |
| 1492 | * @param string $notify_message The comment notification email text. |
| 1493 | * @param int $comment_id Comment ID. |
| 1494 | */ |
| 1495 | $notify_message = apply_filters( 'comment_notification_text', $notify_message, $comment->comment_ID ); |
| 1496 | |
| 1497 | /** |
| 1498 | * Filters the comment notification email subject. |
| 1499 | * |
| 1500 | * @since 1.5.2 |
| 1501 | * |
| 1502 | * @param string $subject The comment notification email subject. |
| 1503 | * @param int $comment_id Comment ID. |
| 1504 | */ |