[REF][PHP8.1] Ensure that NULL is not passed to substr in CRM_Utils_F… #23914
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…ile::addTrailingSlash
Overview
This aims to fix the following deprecation
Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /home/jenkins/bknix-edge/build/build-0/web/sites/all/modules/civicrm/CRM/Utils/File.php on line 267
which is triggered when trying to run CRM API etc unit tests on php8.1Before
Deprecation triggered
After
No Deprecation triggered
ping @eileenmcnaughton @totten @demeritcowboy