Str class changes result in mb_split(): Pattern is not valid under UTF-16LE encoding

[optii]

Laravel Version

12.21

PHP Version

8.1.4

Database Driver & Version

No response

Description

Traced the problem to the changes in the PR #56338

Since updating from 12.20 to 12.21 we have the following error when Str::studly gets called

mb_split(): Pattern is not valid under UTF-16LE encoding

Steps To Reproduce

if you need a detailed repo let me know as this is on a large enterprise project

[shaedrich]

Do you have an example for that?

[crynobone]

Hey there,

We're closing this issue because it's inactive, already solved, old, or not relevant anymore. Feel free to open up a new issue if you're still experiencing this problem.