Sergey Biryukov bf067ce93a Plugins: Introduce did_filter() function. ...

While most of the action functions are aliases for the respective filter functions, using `did_action()` to detect whether a filter has been run is not possible, as it only works specifically for actions.

This is now resolved by introducing a new function, `did_filter()`, which retrieves the number of times a filter has been applied during the current request, bringing parity with `did_action()`.

Follow-up to [4630], [6318], [27294].

Props mordauk, chriscct7, andykeith, nacin, dd32, markparnell, SergeyBiryukov.
Fixes #35357.
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git-svn-id: http://core.svn.wordpress.org/trunk@53362 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2022-07-31 14:20:12 +00:00

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