apply_filters( 'pingback_useragent', string $concat_useragent, string $useragent, string $pingback_server_url, string $pagelinkedto, string $pagelinkedfrom )

Filters the user agent sent when pinging-back a URL.

Description Description

Parameters Parameters


(string) The user agent concatenated with ' -- WordPress/' and the WordPress version.


(string) The useragent.


(string) The server URL being linked to.


(string) URL of page linked to.


(string) URL of page linked from.

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Source Source

File: wp-includes/comment.php

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Changelog Changelog

Version Description
2.9.0 Introduced.

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