WordPress/wp-includes
Sergey Biryukov 89e665383f KSES: Display a notice if any of the required globals are not set.
When using the `CUSTOM_TAGS` constant, these global variables should be set to arrays:

* `$allowedposttags`
* `$allowedtags`
* `$allowedentitynames`
* `$allowedxmlentitynames`

This commit aims to improve developer experience by displaying a more helpful message to explain a PHP fatal error further in the code if any of these globals are either not set or not an array.

Note Using `CUSTOM_TAGS` is not recommended and should be considered deprecated. The `wp_kses_allowed_html` filter is more powerful and supplies context.

Follow-up to [832], [834], [2896], [13358], [21796], [28845], [43016], [48072].

Props doctorlai, pento, KnowingArt_com, bosconiandynamics, TJNowell, ironprogrammer, audrasjb, mukesh27, SergeyBiryukov.
Fixes #47357.
Built from https://develop.svn.wordpress.org/trunk@54672


git-svn-id: http://core.svn.wordpress.org/trunk@54224 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-10-24 14:49:15 +00:00
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