Update comment meta field based on comment ID.Use the $prev_value parameter to differentiate between meta fields with the same key and comment ID.
3167
Continue readingUpdates the comment cache of given comments.Will add the comments in $comments to the cache. If comment ID already exists in the comment cache then it will not be updated. The comment is added to the cache using the comment group with the key using the ID of the comments.
3165
Continue readingSend a Trackback.Updates database when sending trackback to prevent duplicates.
3069
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weblog_ping
Send a pingback.
3351
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