Source View: comment_notification_headers

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
1544
1545      /**
1546       * Filter the comment notification email headers.
1547       *
1548       * @since 1.5.2
1549       *
1550       * @param string $message_headers Headers for the comment notification email.
1551       * @param int    $comment_id      Comment ID.
1552       */
1553      $message_headers = apply_filters( 'comment_notification_headers', $message_headers, $comment->comment_ID );
1554
1555      foreach ( $emails as $email ) {
1556           @wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers );
1557      }
1558
1559      return true;
1560 }
1561 endif;
1562