[Sync EN] Clarify forward_static_call_array() behavior outside a class context (#5241)

[github-actions]

Commit: https://github.com/php/doc-en/commit/846dfb87daacac70877c332686d60c7dfd0f15d8
PR: https://github.com/php/doc-en/pull/5241

Archivos ES a actualizar

• reference/funchand/functions/forward-static-call-array.xml