spacedmonkey 323d8cb19d Plugins: Store result of call to array_keys, to save repeated calls in WP_Hook class. ...

In the `WP_Hook` class the function `array_keys` was called every time an array of hook priorities was needed. For sites with lots of filters or actions, this would result in thousands of calls to the `array_keys` function, which uses server resources. Instead of recomputing this array every time it is needed, only compute it when filters are added and removed, then store the result as a class property. Improve unit tests to ensure this behaviour is tested. 

Props spacedmonkey, bor0, flixos90, hellofromTonya, mukesh27.
Fixes #58458.
Built from https://develop.svn.wordpress.org/trunk@56609


git-svn-id: http://core.svn.wordpress.org/trunk@56121 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2023-09-18 12:41:18 +00:00

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