What is WordPress Hook: comment_moderation_subject
The comment_moderation_subject hook in WordPress is used to modify the subject line of the email sent to administrators when a comment is held for moderation.
Understanding the Hook: comment_moderation_subject
The comment_moderation_subject hook is located within the wp_notify_moderator function in the WordPress core. This function is responsible for sending email notifications to site administrators when a comment is held for moderation. By using the comment_moderation_subject hook, developers can modify the subject line of these notification emails.
Hook Parameters (if applicable): comment_moderation_subject
The comment_moderation_subject hook does not accept any parameters. Developers can directly modify the subject line within the callback function attached to this hook.
Hook Doesn’t Work: comment_moderation_subject
If the comment_moderation_subject hook doesn’t work as expected, it could be due to a conflict with another plugin or theme function that is also modifying the email subject line. To troubleshoot, developers should deactivate other plugins and switch to a default theme to see if the issue persists. Additionally, checking for syntax errors within the callback function is recommended.
Best Practices & Usage Notes (if applicable): comment_moderation_subject
When using the comment_moderation_subject hook, it’s important to ensure that the modified subject line provides relevant information to administrators. Additionally, developers should be mindful of the potential impact on email deliverability and avoid using spam-triggering words or phrases in the subject line.
comment_moderation_subject Usage Example
“`php
function custom_comment_moderation_subject( $subject ) {
$subject = ‘New Comment Requires Moderation: ‘ . get_bloginfo( ‘name’ );
return $subject;
}
add_filter( ‘comment_moderation_subject’, ‘custom_comment_moderation_subject’ );
“`