Summary:
`strlen()` was used in Phabricator to check if a generic value is a non-empty string.
This behavior is deprecated since PHP 8.1. Phorge adopts `phutil_nonempty_string()` as a replacement.
Note: this may highlight other absurd input values that might be worth correcting
instead of just ignoring. If phutil_nonempty_string() throws an exception in your
instance, report it to Phorge to evaluate and fix that specific corner case.
```
EXCEPTION: (RuntimeException) strlen(): Passing null to parameter #1 ($string) of type string is deprecated at [<arcanist>/src/error/PhutilErrorHandler.php:261]
arcanist(head=master, ref.master=97e163187418), phorge(head=diffusionBrowseCode, ref.master=108cbcd09bd3, ref.diffusionBrowseCode=108cbcd09bd3)
#0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<phorge>/src/applications/diffusion/controller/DiffusionBrowseController.php:25]
```
```
EXCEPTION: (RuntimeException) strlen(): Passing null to parameter #1 ($string) of type string is deprecated at [<arcanist>/src/error/PhutilErrorHandler.php:261]
arcanist(head=master, ref.master=97e163187418), phorge(head=diffusionBrowseCode, ref.master=108cbcd09bd3, ref.diffusionBrowseCode=108cbcd09bd3)
#0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<phorge>/src/applications/diffusion/conduit/DiffusionBrowseQueryConduitAPIMethod.php:40]
```
Closes T15462
Test Plan: After applying these two changes, get next expected exceptions about `RuntimeException: file_exists(): Passing null to parameter #1 ($filename) of type string is deprecated` and `CommandException: Command failed with error #128! fatal: detected dubious ownership in repository at '/var/repo/1'`, but no RuntimeException about `strlen()` anymore.
Reviewers: O1 Blessed Committers, speck
Reviewed By: O1 Blessed Committers, speck
Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Maniphest Tasks: T15462
Differential Revision: https://we.phorge.it/D25286
32b2d3871f