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. Closes T15391 Test Plan: Applied this change and afterwards, "Bulk Editor" page on `/maniphest/bulk/` rendered correctly. To test that: - visit a list of some Tasks (like `/maniphest/`) - filter something (this can be done in multiple ways) - select Tasks - click on Bulk Edit Selected Tasks Reviewers: O1 Blessed Committers, valerio.bozzolan Reviewed By: O1 Blessed Committers, valerio.bozzolan Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno Maniphest Tasks: T15391 Differential Revision: https://we.phorge.it/D25223