[wp-hackers] What Is Deprecated Argument Run?

Andrew Nacin wp at andrewnacin.com
Tue Aug 31 03:45:18 UTC 2010

On Mon, Aug 30, 2010 at 11:27 PM, Raj <list at expost.org> wrote:

> What is the "deprecated_argument_run " action used for? Why is it called so
> many times in every page request?

It is run when deprecated function arguments are used. If I had to guess, a
plugin or theme is using a lot of deprecated arguments.

You can track deprecated usage using this hook (and a few others). One such
plugin that logs deprecated notices is

If you turn on WP_DEBUG, you'll see the many E_NOTICEs being triggered.

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