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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 |
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1529 |
|
1530 | /** |
1531 | * Filter the comment moderation email headers. |
1532 | * |
1533 | * @since 2.8.0 |
1534 | * |
1535 | * @param string $message_headers Headers for the comment moderation email. |
1536 | * @param int $comment_id Comment ID. |
1537 | */ |
1538 | $message_headers = apply_filters( 'comment_moderation_headers', $message_headers, $comment_id ); |
1539 |
|
1540 | foreach ( $emails as $email ) { |
1541 | @wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers ); |
1542 | } |
1543 |
|
1544 | return true; |
1545 | } |
1546 | endif; |
1547 |
|